Opinion polling for the 2010 United States Senate elections

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The 2010 United States Senate elections took place across the United States on November 2, 2010. All class 3 seats of the United States Senate were up for election.

Polled races

AlabamaAlabama

Senate
Incumbent: Richard Shelby(R)
Winner: Richard Shelby

Source Date Democrat:
William Barnes
Republican:
Richard Shelby
Election Results November 2, 2010 35% 65%
Rasmussen Reports September 21, 2010 30% 58%
Rasmussen Reports August 19, 2010 28% 60%
Rasmussen Reports July 22, 2010 29% 59%
Rasmussen Reports May 25, 2010 31% 58%
Daily Kos/Research 2K May 17–19, 2010 33% 57%
Rasmussen Reports March 29, 2010 32% 59%

AlaskaAlaska

Senate
Incumbent: Lisa Murkowski (R)
Primary Date: August 24

Source Date Democrat:
Scott McAdams
Republican:
Joe Miller
Write-In (R):
Lisa Murkowski
Public Policy Polling October 30–31, 2010 30% 37% 30%
Hays Research October 29–31, 2010 26% 27% 25%*
Dittman Research October 23–28, 2010 23% 27% 37%
Hellenthal & Associates/Alaskans Standing Together October 25–27, 2010 24% 30% 46%
Hays Research October 25–26, 2010 29% 23% 34% *
CNN/Time Magazine October 15–19, 2010 22% 36% 38%
Rasmussen Reports October 13, 2010 27% 35% 34%
Public Policy Polling/Daily Kos October 9–10, 2010 26% 35%
26% 35% 33%
National Research/Club for Growth October 8–9, 2010 27% 33% 31%
CNN/Time Magazine September 24–28, 2010 22% 38% 36%
Ivan Moore Research September 23–27, 2010 28% 43% 18%
Craciun Research September 24–25, 2010 19% 30% 41%
Rasmussen Reports September 19, 2010 25% 42% 27%
Rasmussen Reports August 31, 2010 44% 50%
Dittman Research August 30, 2010 19% 31% 37%
Basswood Research August 28–29, 2010 36% 52%
Public Policy Polling August 27–28, 2010 39% 47%
22% 38% 34%
  • Referred to as the write in candidate.

ArizonaArizona

Senate
Incumbent: John McCain (R)
Winner: John McCain

Source Date Democrat:
Rodney Glassman
Republican:
John McCain
Independent:
David Nolan
Election Results November 2, 2010 35% 59% 5%
Rasmussen Reports October 28, 2010 32% 52%
Public Policy Polling/Daily Kos October 23–24, 2010 38% 56%
Behavioral Research Center October 1–10, 2010 22% 56%
Rasmussen Reports October 3, 2010 33% 54%
Rasmussen Reports September 7, 2010 37% 51%
Rasmussen Reports August 25, 2010 31% 53%
Rasmussen Reports July 29, 2010 34% 53%
Rasmussen Reports May 17, 2010 28% 57%
Daily Kos/Research 2K May 3–5, 2010 35% 48%
Public Policy Polling April 23–25, 2010 33% 49%
Behavioral Research Center April 12–25, 2010 24% 46%
Rasmussen Reports April 13, 2010 32% 54%
Daily Kos/Research 2K March 29–31, 2010 33% 52%

ArkansasArkansas

Senate
Incumbent: Blanche Lincoln(D)
Winner: John Boozman

Source Date Democrat:
Blanche Lincoln
Republican:
John Boozman
Election Results November 2, 2010 37% 58%
Rasmussen Reports October 28, 2010 36% 55%
University of Arkansas October 8–20, 2010 35% 54%
Mason Dixon/Stephens Media October 15–19, 2010 34% 55%
CNN/Time Magazine October 15–19, 2010 42% 53%
Rasmussen Reports September 30, 2010 37% 55%
Ipsos/Reuters September 17–19, 2010 39% 53%
Talk Business/Hendrix College September 16, 2010 29% 56%
Arkansas News Bureau/Mason Dixon September 12–14, 2010 34% 51%
Rasmussen Reports August 18, 2010 27% 65%
Rasmussen Reports July 20, 2010 35% 60%
Ipsos/Reuters July 16–18, 2010 35% 54%
Talk Business July 17, 2010 32% 57%
Magellan Strategies July 12, 2010 29% 60%
Benenson Strategy Group June 22–24, 2010 36% 45%
Rasmussen Reports June 15, 2010 32% 61%
Daily Kos/Research 2K May 24–26, 2010 38% 58%
Rasmussen Reports May 19, 2010 28% 66%
Daily Kos/Research 2K May 10–12, 2010 40% 54%
Mason-Dixon May 3–5, 2010 35% 52%
Daily Kos/Research 2K April 26–28, 2010 42% 52%
Rasmussen Reports April 26, 2010 29% 57%
Daily Kos/Research 2K April 12–14, 2010 43% 50%
Rasmussen Reports March 30, 2010 36% 51%
Daily Kos/Research 2K March 22–24, 2010 42% 49%
Rasmussen Reports March 1, 2010 39% 48%
Rasmussen Reports February 1, 2010 35% 54%
Public Policy Polling January 29–31, 2010 33% 56%

CaliforniaCalifornia

Senate
Incumbent: Barbara Boxer(D)
Winner: Barbara Boxer

Source Date Democrat:
Barbara Boxer
Republican:
Carly Fiorina
Election Results November 2, 2010 52% 43%
Public Policy Polling October 29–31, 2010 50% 46%
YouGov October 28–31, 2010 49% 43%
Survey USA October 26–31, 2010 46% 38%
YouGov October 25–28, 2010 49% 42%
Rasmussen Reports October 27, 2010 49% 46%
CNN/Time Magazine October 20–26, 2010 53% 37%
Field October 14–26, 2010 49% 41%
Survey USA October 21–25, 2010 45% 40%
Suffolk University October 21–24, 2010 52% 43%
Fox News/Pulse Opinion Research October 23, 2010 48% 44%
Public Policy Polling October 21–23, 2010 52% 43%
Rasmussen Reports October 21, 2010 48% 46%
University of Southern California/Los Angeles Times
Greenberg Quinlan Rosner/American Viewpoint
October 13–20, 2010 48% 40%
Tarrance Group October 17–19, 2010 44% 44%
Survey USA October 15–18, 2010 46% 44%
PPIC October 10–17, 2010 43% 37%
Fox News/Pulse Opinion Research October 16, 2010 48% 44%
Wilson Research Strategies October 13–14, 2010 43% 46%
Ipsos/Reuters October 12–14, 2010 47% 40%
Rasmussen Reports October 13, 2010 49% 46%
Angus Reid Public Opinion October 4–6, 2010 55% 39%
Ipsos/Reuters October 2–4, 2010 49% 45%
Rasmussen Reports October 3, 2010 49% 45%
Survey USA September 30 – October 3, 2010 46% 43%
CNN/Time Magazine September 24–28, 2010 56% 37%
PPIC September 19–26, 2010 42% 35%
University of Southern California/Los Angeles Times
Greenberg Quinlan Rosner/American Viewpoint
September 15–22, 2010 53% 38%
Survey USA September 19–21, 2010 49% 43%
Field September 14–21, 2010 47% 41%
Rasmussen Reports September 20, 2010 47% 43%
Fox News/Pulse Opinion Research September 18, 2010 47% 46%
Public Policy Polling September 14–16, 2010 50% 42%
Fox News/Pulse Opinion Research September 11, 2010 46% 44%
CNN/Time Magazine September 2–7, 2010 48% 44%
Rasmussen Reports September 6, 2010 47% 48%
Survey USA August 31 – September 1, 2010 46% 48%
Rasmussen Reports August 24, 2010 44% 43%
Survey USA August 9–11, 2010 42% 47%
Rasmussen Reports August 3, 2010 45% 40%
Public Policy Polling July 23–25, 2010 49% 40%
PPIC July 6–20, 2010 39% 34%
Rasmussen Reports July 12, 2010 49% 42%
Survey USA July 8–11, 2010 45% 47%
Reuters/Ipsos June 25–27, 2010 45% 41%
CrossTarget/Pajamas Media June 13, 2010 47% 47%
Rasmussen Reports June 9, 2010 48% 43%
USC/Los Angeles Times May 19–26, 2010 44% 38%
Public Policy Polling May 21–23, 2010 45% 42%
Daily Kos/Research 2K May 17–19, 2010 48% 39%
PPIC May 9–16, 2010 48% 39%
Rasmussen Reports May 12, 2010 45% 38%
Rasmussen Reports April 12, 2010 42% 38%
PPIC March 9–16, 2010 44% 43%
Field Research Corporation March 9–15, 2010 45% 44%
Rasmussen Reports March 11, 2010 46% 40%
Daily Kos/Research 2K March 8–10, 2010 49% 40%
Rasmussen Reports February 11, 2010 46% 42%
PPIC January 12–19, 2010 48% 40%
Field Research Corporation January 5–17, 2010 50% 35%
Rasmussen Reports January 14, 2010 46% 43%
Rasmussen Reports November 17, 2009 46% 37%
Field Research Corporation Sep. 18-Oct. 6, 2009 49% 35%

ColoradoColorado

Senate
Incumbent: Michael Bennet(D)
Winner: Michael Bennet

Source Date Democrat:
Michael Bennet
Republican:
Ken Buck
Public Policy Polling October 30–31, 2010 48% 49%
Fox News/Pulse Opinion Research October 30, 2010 46% 50%
Marist College/McClatchy October 26–28, 2010 45% 44%
YouGov October 25–28, 2010 49% 45%
RBI Strategies & Research/Colorado Pols October 24–26, 2010 43% 42%
CNN/Time Magazine October 20–26, 2010 49% 44%
Rasmussen Reports October 25, 2010 44% 48%
Public Policy Polling October 21–23, 2010 47% 47%
Denver Post/Survey USA October 19–21, 2010 47% 47%
Ipsos/Reuters October 15–17, 2010 48% 42%
Fox News/Pulse Opinion Research October 16, 2010 45% 46%
Rasmussen Reports October 14, 2010 45% 47%
Harstad Strategic Research October 3–4, 2010 44% 41%
Rasmussen Reports October 3, 2010 45% 50%
Public Policy Polling September 30 – October 2, 2010 46% 45%
Denver Post/Survey USA September 28–30, 2010 43% 48%
McClatchy/Marist College September 26–28, 2010 42% 50%
Rasmussen Reports September 27, 2010 43% 51%
Fox News/Pulse Opinion Research September 25, 2010 43% 47%
CNN/Time Magazine September 17–20, 2010 44% 49%
Rasmussen Reports September 14, 2010 45% 49%
Public Opinion Strategies August 28 – September 1, 2010 43% 40%
Rasmussen Reports August 29, 2010 44% 47%
Ipsos/Reuters August 20–22, 2010 40% 49%
Rasmussen Reports August 11, 2010 41% 46%
Public Policy Polling August 7–8, 2010 46% 43%
Survey USA/Denver Post July 27–29, 2010 43% 43%
Rasmussen Reports July 26, 2010 42% 48%
Rasmussen Reports July 8, 2010 39% 48%
Survey USA/Denver Post June 15–17, 2010 43% 46%
Rasmussen Reports June 7, 2010 41% 46%
Public Policy Polling May 14–16, 2010 45% 39%
Rasmussen Reports May 3, 2010 41% 48%
Public Policy Polling March 5–8, 2010 46% 40%
Rasmussen Reports March 2, 2010 38% 44%
Rasmussen Reports February 2, 2010 41% 45%
Rasmussen Reports January 13, 2010 38% 43%
Daily Kos/Research 2K January 11–13, 2010 41% 38%
Rasmussen Reports December 8, 2009 38% 42%

ConnecticutConnecticut

Senate
Incumbent: Christopher Dodd(D)-retiring
Winner: Richard Blumenthal

Source Date Democrat:
Richard Blumenthal
Republican:
Linda McMahon
Rasmussen Reports October 31, 2010 53% 46%
Quinnipiac University October 25–31, 2010 53% 44%
Public Policy Polling October 27–29, 2010 54% 43%
YouGov October 25–28, 2010 51% 42%
Merriman River Group/Capitol Report October 24–26, 2010 52% 44%
Rasmussen Reports October 24, 2010 56% 43%
Quinnipiac University October 18–24, 2010 54% 42%
Fox News/Pulse Opinion Research October 23, 2010 53% 42%
Suffolk University October 19–20, 2010 57% 39%
Rasmussen Reports October 14, 2010 51% 46%
Quinnipiac University October 7–11, 2010 54% 43%
Fox News/Pulse Opinion Research October 9, 2010 49% 43%
Rasmussen Reports October 5, 2010 54% 43%
CNN/Time Magazine October 1–5, 2010 56% 37%
Greenberg Quinlan Rosner October 3–4, 2010 53% 38%
Merriman River Group/Capitol Report October 3, 2010 52% 45%
Fox News/Pulse Opinion Research October 2, 2010 52% 42%
Public Policy Polling September 30 – October 2, 2010 53% 41%
Rasmussen Reports September 26, 2010 50% 45%
Quinnipiac University September 21–26, 2010 49% 46%
Quinnipiac University September 8–12, 2010 51% 45%
Rasmussen Reports September 9, 2010 53% 44%
Rasmussen Reports August 11, 2010 47% 40%
Quinnipiac University July 28-Aug. 2, 2010 50% 40%
Rasmussen Reports July 15, 2010 53% 40%
Quinnipiac University July 7–13, 2010 54% 37%
Quinnipiac University June 2–8, 2010 55% 35%
Rasmussen Reports June 1, 2010 56% 33%
Quinnipiac University May 24–25, 2010 56% 31%
Greenberg Quinlan Rosner May 19–20, 2010 55% 40%
Rasmussen Reports May 18, 2010 48% 45%
Rasmussen Reports May 4, 2010 52% 39%
Rasmussen Reports April 7, 2010 55% 35%
Quinnipiac University March 9–15, 2010 61% 28%
Rasmussen Reports March 2, 2010 60% 31%
Rasmussen Reports February 1, 2010 56% 36%
Daily Kos/Research 2K January 11–13, 2010 56% 34%
Quinnipiac University January 8–12, 2010 64% 23%
Rasmussen Reports January 6, 2010 58% 34%
Public Policy Polling January 4–5, 2010 60% 28%

DelawareDelaware

Senate
Incumbent: Ted Kaufman(D)-Retiring
Winner: Chris Coons

Source Date Democrat:
Chris Coons
Republican:
Christine O'Donnell
Write In:
Mike Castle
Election Results November 2, 2010 57% 40%
Monmouth University October 25–27, 2010 51% 41%
Fairleigh Dickinson University October 20–26, 2010 57% 36%
Rasmussen Reports October 14, 2010 51% 40%
Survey USA/University of Delaware October 11–12, 2010 54% 33%
CNN/Time Magazine October 8–12, 2010 61% 32%
Monmouth University October 8–11, 2010 57% 38%
Magellan Strategies October 10, 2010 54% 36%
Fox News/Pulse Opinion Research October 9, 2010 54% 38%
Fairleigh Dickinson University September 27 – October 3, 2010 53% 36%
University of Delaware September 16–30, 2010 61% 37%
Rasmussen Reports September 26, 2010 49% 40% 5%
CNN/Time Magazine September 17–20, 2010 55% 39%
Fox News/Pulse Opinion Research September 18, 2010 54% 39%
Rasmussen Reports September 15, 2010 53% 42%
Public Policy Polling September 11–12, 2010 50% 34%
Rasmussen Reports September 2, 2010 47% 36%
Daily Kos/Public Policy Polling August 7–8, 2010 44% 37%
Rasmussen Reports August 5, 2010 49% 36%
Rasmussen Reports July 14, 2010 39% 41%
Daily Kos/Research 2K February 22–24, 2010 47% 31%

FloridaFlorida

Senate
Incumbent: George LeMieux(R)-Retiring
Winner: Marco Rubio

Source Date Democrat:
Kendrick Meek
Republican:
Marco Rubio
Independent:
Charlie Crist
Election Results November 2, 2010 20% 49% 30%
Public Policy Polling October 30–31, 2010 21% 47% 30%
Sunshine State News
Susquehanna Polling & Research
October 29–31, 2010 20% 48% 31%
YouGov October 28–31, 2010 15% 43% 34%
Quinnipiac University October 25–31, 2010 18% 45% 31%
YouGov October 25–28, 2010 15% 38% 32%
Rasmussen Reports October 27, 2010 16% 50% 30%
Sunshine State News
Susquehanna Polling & Research
October 26–27, 2010 23% 47% 27%
Mason Dixon October 25–27, 2010 21% 45% 28%
Quinnipiac University October 18–24, 2010 15% 42% 35%
Zogby International October 18–21, 2010 18% 40% 33%
Ipsos/Miami Herald
St. Petersburg Times
October 15–19, 2010 20% 41% 26%
CNN/Time Magazine October 15–19, 2010 23% 39% 32%
Rasmussen Reports October 18, 2010 20% 43% 32%
Suffolk University October 14–17, 2010 22% 39% 31%
Public Policy Polling October 9–10, 2010 21% 44% 33%
Sunshine State News
Susquehanna Polling & Research
October 6–10, 2010 22% 45% 29%
Quinnipiac University October 6–10, 2010 22% 44% 30%
Rasmussen Reports October 7, 2010 19% 50% 25%
Mason Dixon October 4–6, 2010 21% 42% 27%
Florida Chamber of Commerce
Public Opinion Strategies
September 27–30, 2010 16% 40% 33%
Zogby International September 27–29, 2010 18% 39% 33%
Rasmussen Reports September 28, 2010 21% 41% 30%
CNN/Time Magazine September 24–28, 2010 25% 38% 31%
Quinnipiac University September 23–28, 2010 18% 46% 33%
Mason Dixon September 20–22, 2010 23% 40% 28%
Rasmussen Reports September 14, 2010 23% 41% 30%
Ipsos/Reuters September 10–12, 2010 21% 40% 26%
Fox News/Pulse Opinion Research September 11, 2010 21% 43% 27%
CNN/Time Magazine September 2–7, 2010 24% 36% 34%
Sunshine State News
Susquehanna Polling & Research
September 1–7, 2010 23% 43% 29%
Frederick Polls August 28–31, 2010 17% 34% 35%
Rasmussen Reports August 25, 2010 21% 40% 30%
Public Policy Polling August 21–22, 2010 17% 40% 32%
Quinnipiac University August 11–16, 2010 16% 32% 39%
Mason Dixon August 9–11, 2010 18% 38% 33%
Ipsos/Florida Newspapers August 6–10, 2010 17% 29% 33%
Rasmussen Reports August 9, 2010 21% 38% 33%
McLaughlin & Associates
Associated Industries of Florida
July 31 – August 1, 2010 16% 36% 38%
NYTimes/Florida Newspapers
University of South Florida Polytechnic
July 24–28, 2010 12% 30% 41%
Quinnipiac University July 22–27, 2010 13% 33% 39%
Rasmussen Reports July 21, 2010 20% 35% 35%
Public Policy Polling July 16–18, 2010 17% 29% 35%
Ipsos/Reuters July 9–11, 2010 17% 28% 35%
Rasmussen Reports July 6, 2010 15% 36% 34%
Florida Chamber of Commerce June 9–13, 2010 14% 31% 42%
Rasmussen Reports June 7, 2010 15% 37% 37%
Quinnipiac University June 1–7, 2010 17% 33% 37%
Ipsos/St. Petersburg Times/
Miami Herald
May 14–18, 2010 15% 27% 30%
Rasmussen Reports May 16, 2010 18% 39% 31%
Mason Dixon May 3–5, 2010 19% 32% 38%
Rasmussen Reports May 3, 2010 17% 34% 38%
Public Opinion Strategies April 26–27, 2010 23% 28% 36%
McLaughlin & Associates April 24–25, 2010 15% 29% 33%
Rasmussen Reports April 21, 2010 22% 37% 30%
Quinnipiac University April 8–13, 2010 24% 30% 32%
Rasmussen Reports March 18, 2010 25% 42% 22%
Daily Kos/Research 2K March 15–17, 2010 27% 32% 29%
Public Policy Polling March 5–8, 2010 25% 34% 27%

Georgia (U.S. state)Georgia

Senate
Incumbent: Johnny Isakson(R)
Winner: Johnny Isakson

Source Date Democrat:
Mike Thurmond
Republican:
Johnny Isakson
Libertarian:
Chuck Donovan
Election Results November 2, 2010 39% 58% 3%
Rasmussen Reports October 24, 2010 29% 59% 5%
Survey USA October 21–24, 2010 34% 58% 5%
Landmark Communications October 19, 2010 35% 56% 2%
Rasmussen Reports October 6, 2010 38% 53% 5%
Insider Advantage September 27, 2010 29% 61% 3%
Rasmussen Reports September 21, 2010 36% 52% 5%
Survey USA September 10–12, 2010 34% 56% 6%
Insider Advantage August 18, 2010 35% 47% 7%
Rasmussen Reports August 11, 2010 41% 55%
Rasmussen Reports May 20, 2010 30% 57%
Rasmussen Reports April 22, 2010 35% 51%
Daily Kos/Research 2K April 5–7, 2010 26% 53%

HawaiiHawaii

Senate
Incumbent: Daniel Inouye(D)
Winner: Daniel Inouye

Source Date Democrat:
Daniel Inouye
Republican:
Campbell Cavasso
Election Results November 2, 2010 75% 22%
Rasmussen Reports October 13, 2010 53% 40%
Public Policy Polling/Daily Kos October 2–3, 2010 65% 29%

IdahoIdaho

Senate
Incumbent: Mike Crapo(R)
Winner: Mike Crapo

Source Date Democrat:
Tom Sullivan
Republican:
Mike Crapo
Constitution:
Randy Bergquist
Election Results November 2, 2010 25% 71% 4%
Mason-Dixon/Idaho Newspapers October 20–22, 2010 20% 64% 5%
Mason-Dixon/Idaho Newspapers September 13–15, 2010 17% 61%
Rasmussen Reports August 31, 2010 24% 63%
Rasmussen Reports July 15, 2010 27% 64%
Rasmussen Reports May 11, 2010 22% 66%

IllinoisIllinois

Senate
Incumbent: Roland Burris(D)-Retiring
Winner: Mark Kirk

Source Date Democrat:
Alexi Giannoulias
Republican:
Mark Kirk
Green:
LeAlan Jones
Election Results November 2, 2010 46% 48% 3%
Public Policy Polling October 30–31, 2010 42% 46% 3%
Fox News/Pulse Opinion Research October 30, 2010 42% 46% 6%
YouGov October 25–30, 2010 47% 40%
Anzalone Liszt October 27–28, 2010 39% 37% 3%
Rasmussen Reports October 26, 2010 42% 46% 5%
Anzalone Liszt October 20–24, 2010 38% 36% 7%
Fox News/Pulse Opinion Research October 23, 2010 41% 43% 7%
WGN/Chicago Tribune October 18–22, 2010 41% 44% 5%
Mason Dixon/St Louis Post Dispatch October 18–20, 2010 41% 43%
Rasmussen Reports October 18, 2010 41% 44% 4%
Anzalone Liszt October 13–17, 2010 41% 36% 4%
Public Policy Polling October 14–16, 2010 40% 42% 4%
Greenberg Quinlan Rosner October 11–12, 2010 44% 41% 4%
Rasmussen Reports October 11, 2010 44% 43% 4%
Southern Illinois University September 30 – October 10, 2010 37% 37% 3%
Rasmussen Reports October 4, 2010 41% 45% 4%
Suffolk University September 30 – October 3, 2010 41% 42% 4%
Fulcrum Campaign Strategies September 26–29, 2010 33% 42% 2%
WGN/Chicago Tribune/Market Shares September 24–28, 2010 38% 36% 5%
CNN/Time Magazine September 24–28, 2010 42% 38% 8%
Global Strategy Group September 23–26, 2010 40% 37% 3%
Public Policy Polling September 23–26, 2010 36% 40% 8%
Fox News/Pulse Opinion Research September 25, 2010 40% 42% 7%
Rasmussen Reports September 21, 2010 41% 44% 4%
We Ask America September 13, 2010 36% 39% 4%
Rasmussen Reports September 7, 2010 37% 41% 9%
Chicago Tribune/WGN August 28 – September 1, 2010 34% 34%
Rasmussen Reports August 23, 2010 42% 40%
Public Policy Polling August 14–15, 2010 37% 35% 9%
Rasmussen Reports August 9, 2010 40% 40%
We Ask America August 4, 2010 33% 39%
Rasmussen Reports July 26, 2010 43% 41%
Rasmussen Reports July 7, 2010 40% 39%
Public Policy Polling June 12–13, 2010 31% 30% 14%
Rasmussen Reports June 7, 2010 39% 42%
Greenberg Quinlan Rosner May 11–13, 2010 44% 44%
Daily Kos/Research 2K May 3–5, 2010 38% 41%
Rasmussen Reports April 28, 2010 38% 46%
Rasmussen Reports April 5, 2010 37% 41%
Public Policy Polling April 1–5, 2010 33% 37%
Rasmussen Reports March 8, 2010 44% 41%
Daily Kos/Research 2K February 22–24, 2010 43% 36%
Greenberg Quinlan Rosner February 9–14, 2010 49% 45%
Rasmussen Reports February 3, 2010 40% 46%
Public Policy Polling January 22–25, 2010 42% 34%
Rasmussen Reports December 9, 2009 42% 39%

IndianaIndiana

Senate
Incumbent: Evan Bayh-retiring
Winner: Dan Coats

Source Date Democrat:
Brad Ellsworth
Republican:
Dan Coats
Independent:
Rebecca Sink-Burris
Election Results November 2, 2010 40% 55% 5%
Survey USA/Mike Downs Center October 21–25, 2010 32% 54%
Rasmussen Reports October 20–21, 2010 34% 52%
EPIC-MRA October 19–21, 2010 35% 53%
EPIC-MRA September 29 – October 1, 2010 33% 51%
Rasmussen Reports September 14–15, 2010 34% 50%
Rasmussen Reports August 4–7, 2010 29% 50%
The Polling Company July 31-Aug. 3, 2010 35% 50%
Rasmussen Reports July 8, 2010 30% 51%
Rasmussen Reports June 2–3, 2010 33% 47%
Rasmussen Reports May 5–6, 2010 36% 51%
Survey USA/Mike Downs Center April 22–26, 2010 31% 47%
Rasmussen Reports April 13–14, 2010 33% 54%
Rasmussen Reports March 17–18, 2010 34% 49%
Daily Kos/Research 2K February 22–24, 2010 36% 37%
Rasmussen Reports February 16–17, 2010 32% 46%

IowaIowa

Senate
Incumbent: Chuck Grassley(R)
Winner: Chuck Grassley

Source Date Democrat:
Roxanne Conlin
Republican:
Chuck Grassley
Election Results November 2, 2010 33% 65%
Des Moines Register/Selzer & Co. October 26–29, 2010 30% 61%
Rasmussen Reports September 22–23, 2010 37% 55%
Des Moines Register/Selzer & Co. September 19–22, 2010 33% 61%
Rasmussen Reports August 5, 2010 35% 55%
Rasmussen Reports June 14, 2010 37% 54%
Public Policy Polling May 25–27, 2010 31% 57%
Research 2K May 3–5, 2010 40% 49%
Rasmussen Reports April 29, 2010 40% 53%
Rasmussen Reports March 17, 2010 36% 55%
Rasmussen Reports February 18, 2010 36% 53%
Research 2K February 15–17, 2010 35% 56%
Rasmussen Reports January 26, 2010 31% 59%
Daily Kos/Research 2K October 12–14, 2009 39% 51%

KansasKansas

Senate
Incumbent: Sam Brownback(R)-Retiring
Winner: Jerry Moran

Source Date Democrat:
Lisa Johnston
Republican:
Jerry Moran
Election Results November 2, 2010 26% 70%
Survey USA October 22–26, 2010 26% 66%
Survey USA October 10–12, 2010 27% 67%
Survey USA September 14–16, 2010 24% 66%
Survey USA August 12–15, 2010 23% 69%
Rasmussen Reports August 4, 2010 28% 61%
Rasmussen Reports June 30, 2010 23% 59%
Rasmussen Reports May 11, 2010 25% 61%

KentuckyKentucky

Senate
Incumbent: Jim Bunning(R)-Retiring
Winner: Rand Paul

Source Date Democrat:
Jack Conway
Republican:
Rand Paul
Election Results November 2, 2010 44% 56%
Public Policy Polling October 28–30, 2010 40% 55%
YouGov October 25–28, 2010 44% 52%
Rasmussen Reports October 27, 2010 41% 53%
Braun Research/CN2 Politics October 25–27, 2010 39% 47%
Survey USA/Louisville Courier-Journal October 24–27, 2010 43% 52%
CNN/Time Magazine October 20–26, 2010 44% 46%
Public Policy Polling October 21–24, 2010 40% 53%
Fox News/Pulse Opinion Research October 23, 2010 43% 50%
Mason-Dixon
Lexington Herald-Leader
October 18–19, 2010 43% 48%
Rasmussen Reports October 18, 2010 42% 47%
Bennett, Petts & Normington October 17–18, 2010 49% 47%
Braun Research/CN2 Politics October 4–6, 2010 40% 43%
Rasmussen Reports September 29, 2010 38% 49%
Survey USA/Courier-Journal Bluegrass September 21–23, 2010 47% 49%
Benenson Strategy Group September 20–22, 2010 42% 45%
Public Policy Polling/Daily Kos September 11–12, 2010 42% 49%
Rasmussen Reports September 7, 2010 39% 54%
CNN/Time Magazine September 2–7, 2010 46% 46%
Braun Research/CN2 Politics August 31 – September 1, 2010 37% 42%
Survey USA August 30 – September 1, 2010 40% 55%
Braun Research/CN2 Politics August 16–18, 2010 42% 41%
Rasmussen Reports August 17, 2010 40% 49%
Ipsos/Reuters August 13–15, 2010 40% 45%
Braun Research/CN2 Politics August 2–4, 2010 31% 41%
Survey USA July 27–29, 2010 43% 51%
Braun Research/CN2 Politics July 19–21, 2010 38% 41%
Rasmussen Reports July 20, 2010 41% 49%
Public Policy Polling June 28–30, 2010 43% 43%
Benenson Strategy Group June 26–29, 2010 48% 46%
Rasmussen Reports June 28, 2010 42% 49%
Rasmussen Reports June 1, 2010 41% 49%
Survey USA May 25–27, 2010 45% 51%
Daily Kos/Research 2K May 24–26, 2010 41% 44%
Rasmussen Reports May 19, 2010 34% 59%
Daily Kos/Research 2K May 10–12, 2010 39% 42%
Public Policy Polling May 1–2, 2010 38% 47%
Rasmussen Reports April 28, 2010 38% 47%
Rasmussen Reports March 31, 2010 36% 50%
Daily Kos/Research 2K March 15–17, 2010 39% 45%
Rasmussen Reports March 3, 2010 34% 49%
Rasmussen Reports February 2, 2010 39% 47%
Rasmussen Reports January 6, 2010 38% 46%
Public Policy Polling December 18–21, 2009 36% 42%
Survey USA October 30-Nov. 2, 2009 44% 39%

LouisianaLouisiana

Senate
Incumbent: David Vitter(R)
Winner: David Vitter

Source Date Democrat:
Charlie Melancon
Republican:
David Vitter
Election Results November 2, 2010 38% 57%
Magellan Strategies October 24, 2010 35% 52%
Clarus Research Group October 21–24, 2010 38% 50%
Anzalone Liszt October 17–19, 2010 45% 48%
Anzalone Liszt October 9–12, 2010 42% 49%
Magellan Strategies October 10, 2010 35% 51%
Magellan Strategies September 19, 2010 34% 52%
Bennett, Petts & Normington September 13–16, 2010 38% 48%
Rasmussen Reports August 30, 2010 33% 54%
Public Policy Polling August 21–22, 2010 41% 51%
Clarus Research Group August 15–16, 2010 36% 48%
Public Opinion Strategies July 19–20, 2010 31% 48%
Anzalone Liszt July 13–18, 2010 43% 44%
Rasmussen Reports June 24, 2010 35% 53%
Public Policy Polling June 12–13, 2010 37% 46%
Southern Media & Opinion Research April 19–23, 2010 31% 49%
Rasmussen Reports April 7, 2010 36% 52%
Rasmussen Reports March 10, 2010 34% 57%
Rasmussen Reports February 10, 2010 33% 57%
Rasmussen Reports January 14, 2010 35% 53%
Rasmussen Reports October 5, 2009 36% 46%

MarylandMaryland

Senate
Incumbent: Barbara Mikulski(D)
Winner: Barbara Mikulski

Source Date Democrat:
Barbara Mikulski
Republican:
Eric Wargotz
Election Results November 2, 2010 62% 36%
Washington Post/SRBI October 19–22, 2010 64% 27%
OpinionWorks/Baltimore Sun October 15–20, 2010 59% 32%
Washington Post/SRBI September 22–26, 2010 61% 29%
Rasmussen Reports September 15, 2010 54% 38%
Rasmussen Reports August 17, 2010 55% 39%
Public Policy Polling July 10–12, 2010 59% 27%
Rasmussen Reports July 8, 2010 58% 33%

MassachusettsMassachusetts

Senate
Incumbent: Paul Kirk(D)-Retiring
Winner: Scott Brown

Source Date Democrat:
Martha Coakley
Republican:
Scott Brown
Election Results January 19, 2010 47% 52%
Politico/Insider Advantage January 17, 2010 43% 52%
Public Policy Polling January 16–17, 2010 46% 51%
Daily Kos/Research 2K January 15–17, 2010 48% 48%
Merriman River Group/InsideMedford.com January 15, 2010 41% 51%
Pajamas Media/CrossTarget January 14, 2010 39% 54%
American Research Group January 12–14, 2010 45% 48%
BMG/Research 2K January 12–13, 2010 49% 41%
Suffolk University January 11–13, 2010 46% 50%
Rasmussen Reports January 11, 2010 49% 47%
Public Policy Polling January 7–9, 2010 47% 48%
Boston Globe January 2–6, 2010 53% 36%
Rasmussen Reports January 4, 2010 50% 41%

MissouriMissouri

Senate
Incumbent: Kit Bond(R)-Retiring
Winner: Roy Blunt

Source Date Democrat:
Robin Carnahan
Republican:
Roy Blunt
Election Results November 2, 2010 41% 54%
YouGov October 25–28, 2010 43% 52%
Missouri State University October 20–27, 2010 41% 54%
Mason Dixon/St Louis Post Dispatch October 18–20, 2010 40% 49%
Rasmussen Reports October 19, 2010 43% 52%
Public Policy Polling October 17–18, 2010 41% 46%
Fox News/Pulse Opinion Research October 16, 2010 43% 49%
Rasmussen Reports October 5, 2010 43% 51%
CNN/Time Magazine October 1–5, 2010 39% 50%
Fox News/Pulse Opinion Research October 2, 2010 42% 50%
Garin Hart Yang September 20–22, 2010 41% 45%
Rasmussen Reports September 21, 2010 44% 52%
Global Strategy Group September 14–18, 2010 39% 43%
Rasmussen Reports September 7, 2010 43% 53%
Rasmussen Reports August 23, 2010 40% 51%
Missouri State University August 7–22, 2010 48% 49%
Public Policy Polling/Daily Kos August 14–15, 2010 38% 45%
Rasmussen Reports August 10, 2010 43% 50%
Rasmussen Reports July 27, 2010 43% 49%
Mason Dixon July 19–21, 2010 42% 48%
Rasmussen Reports July 13, 2010 45% 47%
Rasmussen Reports June 28, 2010 43% 48%
Rasmussen Reports June 2, 2010 44% 45%
Rasmussen Reports May 3, 2010 42% 50%
Rasmussen Reports April 6, 2010 42% 48%
Public Policy Polling March 27–28, 2010 41% 45%
Rasmussen Reports March 9, 2010 41% 47%
Rasmussen Reports February 10, 2010 42% 49%
Rasmussen Reports January 19, 2010 43% 49%
Rasmussen Reports December 15, 2009 46% 44%
Public Policy Polling November 13–15, 2009 43% 42%

NevadaNevada

Senate
Incumbent: Senate Majority Leader Harry Reid(D)
Winner: Harry Reid

Source Date Democrat:
Harry Reid
Republican:
Sharron Angle
Tea Party:
Scott Ashjian
Election Results November 2, 2010 50% 45%
Public Policy Polling October 30–31, 2010 46% 47% 3%
Fox News/Pulse Opinion Research October 30, 2010 45% 48%
YouGov October 25–30, 2010 48% 45%
LVRJ/Mason Dixon October 25–27, 2010 45% 49%
CNN/Time Magazine October 20–26, 2010 43% 39% 5%
Rasmussen Reports October 25, 2010 45% 49%
Rasmussen Reports October 17, 2010 47% 50%
LVRJ/Mason Dixon October 11–12, 2010 45% 47%
Rasmussen Reports October 11, 2010 48% 49%
Fox News/Pulse Opinion Research October 9, 2010 47% 49%
Public Policy Polling October 7–9, 2010 47% 45% 2%
Rasmussen Reports October 5, 2010 46% 50%
CNN/Time Magazine October 1–5, 2010 43% 32% 9%
CNN/Time Magazine October 1–5, 2010 50% 40%
Fox News/Pulse Opinion Research October 2, 2010 46% 49%
Rasmussen Reports September 28, 2010 48% 47%
Public Opinion Strategies September 21–23, 2010 45% 40% 1%
LVRJ/Mason-Dixon September 20–22, 2010 43% 43% 1%
Fox News/Pulse Opinion Research September 18, 2010 45% 46%
CNN/Time Magazine September 10–14, 2010 41% 42% 5%
Rasmussen Reports September 13, 2010 48% 48%
Ipsos/Reuters September 10–12, 2010 46% 44%
Fox News/Pulse Opinion Research September 11, 2010 44% 45%
LVRJ/Mason-Dixon September 7–9, 2010 46% 44%
Rasmussen Reports September 1, 2010 45% 45%
LVRJ/Mason-Dixon August 23–25, 2010 45% 44%
Rasmussen Reports August 16, 2010 47% 47%
LVRJ/Mason-Dixon August 9–11, 2010 46% 44%
Ipsos/Reuters July 30 – August 1, 2010 48% 44%
LVRJ/Mason-Dixon July 26–28, 2010 43% 42%
Rasmussen Reports July 27, 2010 45% 43%
Public Policy Polling July 16–18, 2010 48% 46%
Mason-Dixon July 12–14, 2010 44% 37%
Rasmussen Reports June 22, 2010 41% 48%
Rasmussen Reports June 9, 2010 39% 50%
Mason Dixon/LVRJ June 1–3, 2010 41% 44%
Daily Kos/Research 2K May 31 – June 2, 2010 43% 37% 2%
Mason Dixon/LVRJ May 24–26, 2010 42% 39%
Daily Kos/Research 2K April 26–28, 2010 41% 44% 5%
Rasmussen Reports April 27, 2010 40% 48%
Rasmussen Reports March 31, 2010 40% 51%
Rasmussen Reports March 3, 2010 38% 46%
Mason Dixon/LVRJ February 22–24, 2010 42% 44%
Public Opinion Strategies February 15–16, 2010 37% 32% 16%
Rasmussen Reports February 3, 2010 40% 44%
Rasmussen Reports January 11, 2010 40% 44%
Rasmussen Reports December 9, 2009 43% 47%

New HampshireNew Hampshire

Senate
Incumbent: Judd Gregg(R)-Retiring
Winner: Kelly Ayotte

Source Date Democrat:
Paul Hodes
Republican:
Kelly Ayotte
Election Results November 2, 2010 37% 60%
University of New Hampshire October 27–31, 2010 36% 54%
Public Policy Polling October 27–29, 2010 41% 56%
Rasmussen Reports October 27, 2010 41% 56%
University of New Hampshire October 7–12, 2010 35% 50%
Rasmussen Reports October 10, 2010 44% 51%
American Research Group October 3–5, 2010 42% 47%
University of New Hampshire September 23–29, 2010 35% 50%
American Research Group September 22–26, 2010 32% 46%
Rasmussen Reports September 15, 2010 44% 51%
Public Policy Polling September 11–12, 2010 43% 47%
Rasmussen Reports August 5, 2010 38% 51%
University of New Hampshire July 19–27, 2010 37% 45%
Public Policy Polling July 23–25, 2010 42% 45%
Rasmussen Reports July 12, 2010 37% 49%
Rasmussen Reports May 11, 2010 38% 50%
University of New Hampshire April 12–21, 2010 32% 47%
Public Policy Polling April 17–18, 2010 40% 47%
Rasmussen Reports April 7, 2010 35% 50%
Rasmussen Reports March 8, 2010 37% 47%
Rasmussen Reports February 10, 2010 39% 46%
Daily Kos/Research 2K February 1–3, 2010 39% 46%
University of New Hampshire January 27-Feb. 3, 2010 33% 41%
Rasmussen Reports January 12, 2010 40% 49%
American Research Group December 26–29, 2009 36% 43%
University of New Hampshire September 25-Oct. 2, 2009 33% 40%

New YorkNew York

Senate Class III
Incumbent: Chuck Schumer(D)
Winner: Chuck Schumer

Source Date Democrat:
Chuck Schumer
Republican:
Jay Townsend
Election Results November 2, 2010 65% 33%
YouGov October 28–31, 2010 59% 31%
Siena College October 27–30, 2010 64% 32%
Marist College/McClatchy October 26–28, 2010 66% 28%
Survey USA October 25–28, 2010 62% 32%
YouGov October 25–28, 2010 56% 31%
Quinnipiac University October 18–24, 2010 64% 32%
Marist College October 18–20, 2010 68% 27%
Rasmussen Reports October 19, 2010 59% 31%
Siena College October 14–18, 2010 67% 28%
New York Times October 10–15, 2010 61% 19%
Survey USA October 11–13, 2010 63% 30%
Angus Reid October 5–7, 2010 67% 27%
Survey USA October 5–7, 2010 60% 30%
Quinnipiac University October 1–5, 2010 63% 32%
CNN/Time Magazine October 1–5, 2010 67% 29%
Public Policy Polling October 1–3, 2010 59% 37%
Marist College September 19–22, 2010 59% 38%
Survey USA September 20–21, 2010 54% 33%
Quinnipiac University September 16–20, 2010 54% 38%
Siena College September 16–17, 2010 63% 30%
Rasmussen Reports September 16, 2010 58% 35%
Siena College July 6–8, 2010 63% 26%
Rasmussen Reports June 16, 2010 54% 33%
Siena College June 7–9, 2010 60% 26%
Siena College May 17–20, 2010 63% 24%
Marist College May 3–5, 2010 63% 24%

Senate Class I
Incumbent: Kirsten Gillibrand(D)
Winner: Kirsten Gillibrand

Source Date Democrat:
Kirsten Gillibrand
Republican:
Joseph DioGuardi
Election Results November 2, 2010 61% 37%
YouGov October 28–31, 2010 57% 31%
Siena College October 27–30, 2010 57% 37%
Marist College/McClatchy October 26–28, 2010 55% 32%
Survey USA October 25–28, 2010 56% 36%
YouGov October 25–28, 2010 55% 30%
Quinnipiac University October 18–24, 2010 57% 34%
Marist College October 18–20, 2010 56% 31%
Rasmussen Reports October 19, 2010 54% 33%
Siena College October 14–18, 2010 60% 31%
New York Times October 10–15, 2010 50% 22%
Survey USA October 11–13, 2010 54% 36%
Survey USA October 5–7, 2010 54% 35%
Quinnipiac University October 1–5, 2010 55% 34%
CNN/Time Magazine October 1–5, 2010 60% 33%
Public Policy Polling October 1–3, 2010 50% 40%
Marist College September 19–22, 2010 54% 42%
Survey USA September 20–21, 2010 45% 44%
Quinnipiac University September 16–20, 2010 48% 42%
Siena College September 16–17, 2010 57% 31%
Rasmussen Reports September 16, 2010 49% 39%
Rasmussen Reports September 1, 2010 51% 31%
Quinnipiac University August 23–29, 2010 43% 28%
Siena College August 9–12, 2010 54% 29%
Rasmussen Reports July 29, 2010 50% 33%
Quinnipiac University July 20–26, 2010 48% 27%
Siena College July 6–8, 2010 51% 29%
Quinnipiac University June 15–20, 2010 46% 26%
Rasmussen Reports June 16, 2010 49% 38%
Siena College June 7–9, 2010 47% 29%
Siena College May 17–20, 2010 51% 25%
Rasmussen Reports May 12, 2010 51% 28%
Marist College May 3–5, 2010 50% 30%
Siena College April 12–15, 2010 46% 27%
Marist College March 23–24, 2010 54% 27%
Siena College March 15–18, 2010 48% 24%
Marist College February 22–24, 2010 58% 28%
Siena College February 14–19, 2010 51% 24%
Quinnipiac University January 27-Feb. 1, 2010 44% 27%
Marist College January 25–27, 2010 52% 30%

North CarolinaNorth Carolina

Senate
Incumbent: Richard Burr(R)
Winner: Richard Burr

Source Date Democrat:
Elaine Marshall
Republican:
Richard Burr
Libertarian:
Michael Beitler
Election Results November 2, 2010 43% 55% 2%
Public Policy Polling October 29–31, 2010 40% 52% 2%
Survey USA October 22–25, 2010 38% 53% 5%
Civitas Institute/Tel Opinion Research October 18–20, 2010 34% 44% 4%
Public Policy Polling October 15–17, 2010 40% 48% 3%
Rasmussen Reports October 12, 2010 38% 52%
High Point University September 25–30, 2010 31% 45% 4%
Public Policy Polling September 23–26, 2010 36% 49% 4%
Civitas Institute/National Research September 15–17, 2010 29% 49% 3%
Survey USA September 10–13, 2010 34% 58% 6%
Rasmussen Reports September 8, 2010 38% 54%
Public Policy Polling August 27–29, 2010 38% 43% 6%
Rasmussen Reports August 3, 2010 40% 49%
Public Policy Polling July 27–31, 2010 37% 39% 7%
Civitas Institute July 19–21, 2010 37% 44% 1%
Lake Research July 15–19, 2010 37% 35% 5%
Survey USA July 8–11, 2010 36% 46% 6%
Rasmussen Reports July 6, 2010 37% 52%
Public Policy Polling June 28–30, 2010 33% 38% 10%
Survey USA June 23–24, 2010 40% 50%
Rasmussen Reports June 23, 2010 43% 44%
Public Policy Polling June 4–6, 2010 39% 46%
Rasmussen Reports June 3, 2010 36% 50%
Public Policy Polling May 8–10, 2010 42% 43%
Rasmussen Reports May 5, 2010 40% 48%
Rasmussen Reports April 19, 2010 32% 50%
Public Policy Polling April 8–11, 2010 37% 43%
Rasmussen Reports March 22, 2010 35% 51%
Public Policy Polling March 12–15, 2010 36% 41%
Rasmussen Reports February 23, 2010 34% 50%
Public Policy Polling February 12–15, 2010 33% 43%
Rasmussen Reports January 27, 2010 37% 47%
Public Policy Polling December 11–13, 2009 37% 42%
Civitas Institute December 1–3, 2009 32% 40%
Change Congress October 31-Nov. 1, 2009 35% 42%

North DakotaNorth Dakota

Senate
Incumbent: Byron Dorgan(D)-retiring
Winner: John Hoeven

Source Date Democrat:
Tracy Potter
Republican:
John Hoeven
Election Results November 2, 2010 22% 76%
Rasmussen Reports October 20, 2010 25% 72%
Rasmussen Reports September 20–21, 2010 25% 68%
Rasmussen Reports August 10–11, 2010 25% 69%
Rasmussen Reports July 21, 2010 22% 69%
Rasmussen Reports June 15–16, 2010 19% 73%
Rasmussen Reports May 18–19, 2010 23% 72%
Rasmussen Reports April 20, 2010 24% 69%
Rasmussen Reports March 23, 2010 25% 68%

OhioOhio

Senate
Incumbent: George Voinovich(R)-Retiring
Winner: Rob Portman

Source Date Democrat:
Lee Fisher
Republican:
Rob Portman
Election Results November 2, 2010 39% 57%
YouGov October 28–31, 2010 35% 49%
University of Cincinnati October 27–31, 2010 39% 60%
Public Policy Polling October 28–30, 2010 39% 57%
Quinnipiac University October 25–30, 2010 37% 56%
Columbus Dispatch October 20–29, 2010 40% 56%
YouGov October 25–28, 2010 39% 47%
Rasmussen Reports October 26, 2010 33% 57%
Survey USA October 22–26, 2010 37% 52%
Quinnipiac University October 18–24, 2010 36% 53%
Wilson Research Strategies October 20–21, 2010 38% 49%
CNN/Time/Opinion Research October 15–19, 2010 43% 49%
University of Cincinnati October 14–18, 2010 39% 58%
Quinnipiac University October 12–17, 2010 34% 55%
University of Cincinnati October 8–13, 2010 36% 58%
Rasmussen Reports October 11, 2010 34% 57%
Fox News/Pulse Opinion Research October 9, 2010 35% 52%
Angus Reid Public Opinion October 5–8, 2010 43% 52%
Suffolk University October 4–6, 2010 37% 47%
Quinnipiac University September 29 – October 3, 2010 36% 55%
Fox News/Pulse Opinion Research October 2, 2010 37% 53%
Rasmussen Reports September 27, 2010 42% 51%
CBS News/NY Times September 23–27, 2010 34% 45%
Fox News/Pulse Opinion Research September 25, 2010 37% 50%
Ipsos/Reuters September 23–25, 2010 37% 50%
Ohio Newspapers/University of Cincinnati September 16–20, 2010 40% 55%
Fox News/Pulse Opinion Research September 18, 2010 36% 49%
CNN/Time Magazine September 10–14, 2010 41% 52%
Quinnipiac University September 9–14, 2010 35% 55%
Rasmussen Reports September 13, 2010 41% 49%
Survey USA September 10–13, 2010 40% 49%
Fox News/Pulse Opinion Research September 11, 2010 41% 48%
The Columbus Dispatch August 25 – September 3, 2010 37% 50%
Rasmussen Reports August 30, 2010 39% 44%
Public Policy Polling August 27–29, 2010 38% 45%
Rasmussen Reports August 16, 2010 37% 45%
Reuters/Ipsos August 6–8, 2010 36% 43%
Rasmussen Reports August 2, 2010 40% 44%
Rasmussen Reports July 19, 2010 39% 45%
Rasmussen Reports June 29, 2010 39% 43%
Public Policy Polling June 26–27, 2010 40% 38%
Quinnipiac University June 22–27, 2010 42% 40%
Rasmussen Reports June 3, 2010 43% 43%
University of Cincinnati May 11–20, 2010 47% 46%
Rasmussen Reports May 5, 2010 43% 42%
Quinnipiac University April 21–26, 2010 40% 37%
Daily Kos/Research 2K April 5–7, 2010 43% 39%
Rasmussen Reports March 30, 2010 38% 43%
Quinnipiac University March 23–29, 2010 41% 37%
Public Policy Polling March 20–21, 2010 36% 41%
Rasmussen Reports March 4, 2010 39% 44%
Quinnipiac University February 16–21, 2010 37% 40%
Rasmussen Reports February 5–6, 2010 39% 43%
Rasmussen Reports January 12, 2010 37% 44%
Ohio Right to Life/Wenzel Strategies January 8–12, 2010 31% 37%
Rasmussen Reports December 7, 2009 36% 38%
Quinnipiac University November 5–9, 2009 36% 39%

OklahomaOklahoma

Senate
Incumbent: Tom Coburn(R)
Winner: Tom Coburn

Source Date Democrat:
Jim Rogers
Republican:
Tom Coburn
Election Results November 2, 2010 26% 71%
Rasmussen Reports September 23, 2010 26% 68%
Rasmussen Reports August 26, 2010 24% 67%
Rasmussen Reports July 28, 2010 31% 65%
Rasmussen Reports June 30, 2010 26% 65%

OregonOregon

Senate
Incumbent: Ron Wyden(D)
Winner: Ron Wyden

Source Date Democrat:
Ron Wyden
Republican:
Jim Huffman
Survey USA October 23–28, 2010 57% 32%
Rasmussen Reports October 25, 2010 53% 42%
Public Policy Polling/Daily Kos October 16–17, 2010 56% 40%
Survey USA October 12–14, 2010 56% 34%
Rasmussen Reports October 10, 2010 52% 36%
Survey USA September 12–14, 2010 54% 38%
Rasmussen Reports September 8, 2010 53% 35%
Rasmussen Reports August 22, 2010 56% 36%
Survey USA July 25–27, 2010 53% 35%
Rasmussen Reports June 26, 2010 51% 35%
Rasmussen Reports June 17, 2010 47% 37%
Survey USA June 7–9, 2010 51% 38%
Reports May 24, 2010 51% 38%
Grove Insight March 5–8, 2010 53% 23%
Reports February 16, 2010 49% 35%

PennsylvaniaPennsylvania

Senate
Incumbent: Arlen Specter(D)-defeated
Winner: Pat Toomey

Source Date Democrat:
Joe Sestak
Republican:
Pat Toomey
Election Results November 2, 2010 49% 51%
Public Policy Polling October 30–31, 2010 46% 51%
YouGov October 28–31, 2010 41% 46%
Muhlenberg College/Morning Call October 28–31, 2010 44% 48%
Muhlenberg College/Morning Call October 27–30, 2010 43% 45%
Quinnipiac University October 25–30, 2010 45% 50%
Muhlenberg College/Morning Call October 26–29, 2010 43% 45%
Rasmussen Reports October 28, 2010 46% 50%
Marist College/McClatchy October 26–28, 2010 43% 39%
YouGov October 25–28, 2010 40% 46%
Muhlenberg College/Morning Call October 25–28, 2010 42% 47%
Susquehanna Polling & Research
Pittsburgh Tribune Review
October 24–27, 2010 44% 46%
Muhlenberg College/Morning Call October 24–27, 2010 40% 48%
Muhlenberg College/Morning Call October 23–26, 2010 41% 46%
CNN/Time Magazine October 20–26, 2010 47% 43%
Muhlenberg College/Morning Call October 22–25, 2010 40% 48%
Ipsos/Reuters October 22–24, 2010 46% 42%
Muhlenberg College/Morning Call October 21–24, 2010 42% 47%
Franklin & Marshall College October 18–24, 2010 40% 48%
Muhlenberg College/Morning Call October 20–23, 2010 43% 46%
Muhlenberg College/Morning Call October 19–22, 2010 42% 45%
Rasmussen Reports October 21, 2010 44% 48%
Muhlenberg College/Morning Call October 18–21, 2010 43% 43%
Muhlenberg College/Morning Call October 17–20, 2010 43% 43%
Muhlenberg College/Morning Call October 16–19, 2010 44% 41%
Public Policy Polling October 17–18, 2010 46% 45%
Quinnipiac University October 13–17, 2010 46% 48%
Rasmussen Reports October 12, 2010 39% 49%
Garin Hart Yang October 8–10, 2010 47% 44%
Bennett, Petts & Normington October 4–6, 2010 45% 46%
Muhlenberg College/Morning Call September 28 – October 4, 2010 38% 45%
Rasmussen Reports September 29, 2010 40% 49%
McClatchy/Marist College September 26–28, 2010 42% 51%
Suffolk University September 24–27, 2010 40% 45%
Susquehanna Polling & Research September 23–26, 2010 42% 45%
Franklin & Marshall College/Philadelphia Daily News September 20–26, 2010 29% 32%
Muhlenberg College/Morning Call September 18–23, 2010 39% 46%
Magellan Strategies September 21, 2010 41% 49%
CNN/Time Magazine September 17–20, 2010 44% 49%
Quinnipiac University September 15–19, 2010 43% 50%
Fox News/Pulse Opinion Research September 18, 2010 40% 48%
Politics PA/Municipoll September 15–16, 2010 36% 45%
Times Leader/Critical Insights September 14–16, 2010 36% 40%
Rasmussen Reports September 13, 2010 41% 49%
Fox News/Pulse Opinion Research September 11, 2010 41% 47%
Rasmussen Reports August 30, 2010 39% 45%
Ipsos/Reuters August 27–29, 2010 37% 47%
Franklin & Marshall August 16–23, 2010 28% 31%
Rasmussen Reports August 16, 2010 36% 46%
Public Policy Polling August 14–16, 2010 36% 45%
Garin Hart Yang August 12–15, 2010 44% 46%
Rasmussen Reports July 28, 2010 39% 45%
Rasmussen Reports July 14, 2010 38% 45%
Quinnipiac University July 6–11, 2010 43% 43%
Rasmussen Reports June 29, 2010 39% 45%
Public Policy Polling June 19–21, 2010 41% 41%
Rasmussen Reports June 2, 2010 38% 45%
Daily Kos/Research 2K May 24–26, 2010 43% 40%
Rasmussen Reports May 19, 2010 46% 42%
Daily Kos/Research 2K May 10–12, 2010 40% 45%
Quinnipiac University May 4–10, 2010 40% 42%
Franklin & Marshall College May 3–9, 2010 28% 29%
Rasmussen Reports May 6, 2010 40% 42%
Rasmussen Reports April 12, 2010 36% 47%
Muhlenberg College/Morning Call March 29 – April 7, 2010 22% 33%
Quinnipiac University March 30 – April 5, 2010 34% 42%
Public Policy Polling March 29 – April 1, 2010 36% 42%
Franklin & Marshall College March 15–21, 2010 19% 27%
Rasmussen Reports March 15, 2010 37% 42%
Daily Kos/Research 2K March 8–10, 2010 39% 42%
Quinnipiac University February 22–28, 2010 36% 39%
Franklin & Marshall College February 15–21, 2010 20% 38%
Rasmussen Reports February 8, 2010 35% 43%
Franklin & Marshall College January 18–24, 2010 19% 41%
Rasmussen Reports January 18, 2010 35% 43%
Quinnipiac University December 8–14, 2009 35% 40%
Rasmussen Reports December 8, 2009 38% 44%
Franklin & Marshall College October 20–25, 2009 20% 28%

South CarolinaSouth Carolina

Senate
Incumbent: Jim DeMint(R)
Winner: Jim DeMint

Source Date Democrat:
Alvin Greene
Republican:
Jim DeMint
Green:
Tom Clements
Election Results November 2, 2010 28% 62% 9%
Rasmussen Reports October 19, 2010 21% 58%
Crantford & Associates September 30, 2010 23% 56%
Rasmussen Reports September 22, 2010 21% 64%
Rasmussen Reports August 25, 2010 19% 63%
Rasmussen Reports July 29, 2010 20% 62%
Rasmussen Reports June 10, 2010 21% 58%

UtahUtah

Senate
Incumbent: Bob Bennett (R)-not renominated at state party convention
Winner: Mike Lee

Source Date Democrat:
Sam Granato
Republican:
Mike Lee
Independent:
Bob Bennett*
Constitution:
Scott Bradley
Election Results November 2, 2010 33% 62% 6%
Deseret News/Dan Jones & Associates October 25–28, 2010 30% 57% 5%
Mason Dixon/Salt Lake Tribune October 25–27, 2010 32% 48% 5%
Deseret News/Dan Jones & Associates October 11–14, 2010 31% 53%
Rasmussen Reports October 13, 2010 28% 61%
Deseret News/Dan Jones & Associates September 7–13, 2010 17% 37% 32%
Rasmussen Reports August 23, 2010 29% 54%
Rasmussen Reports June 23, 2010 28% 58%
  • Is not running

VermontVermont

Senate
Incumbent: Patrick Leahy(D)
Winner: Patrick Leahy

Source Date Democrat:
Patrick Leahy
Republican:
Len Britton
Vermont Public Radio/Mason Dixon October 11–13, 2010 62% 27%
Rasmussen Reports September 13, 2010 63% 32%
Rasmussen Reports June 17, 2010 64% 29%

Washington (state)Washington

Senate
Incumbent: Patty Murray(D)
Winner: Patty Murray

Source Date Democrat:
Patty Murray
Republican:
Dino Rossi
Public Policy Polling October 29–31, 2010 48% 50%
Fox News/Pulse Opinion Research October 30, 2010 49% 47%
YouGov October 25–30, 2010 50% 45%
Marist College/McClatchy October 26–28, 2010 47% 44%
University of Washington October 18–28, 2010 49% 45%
Survey USA October 24–27, 2010 47% 47%
Rasmussen Reports October 26, 2010 47% 48%
Rasmussen Reports October 17, 2010 49% 46%
McClatchy/Marist College October 14–17, 2010 48% 47%
Public Policy Polling October 14–16, 2010 49% 47%
Survey USA October 11–14, 2010 50% 47%
Moore Information October 11–13, 2010 47% 46%
University of Washington October 5–14, 2010 50% 42%
CNN/Time Magazine October 8–12, 2010 51% 43%
Elway Research October 7–11, 2010 55% 40%
Fox News/Pulse Opinion Research October 9, 2010 46% 47%
Rasmussen Reports October 6, 2010 46% 49%
Rasmussen Reports September 28, 2010 47% 48%
Fabrizio, McLaughlin & Associates
American Action Forum
September 26–27, 2010 42% 48%
Fox News/Pulse Opinion Research September 25, 2010 48% 47%
Survey USA September 19–21, 2010 50% 48%
Rasmussen Reports September 14, 2010 51% 46%
CNN/Time Magazine September 10–14, 2010 53% 44%
Elway Research September 9–12, 2010 50% 41%
Rasmussen Reports August 31, 2010 46% 48%
Fairbank, Maslin, Maullin, Metz and Associates August 25–31, 2010 50% 45%
Survey USA August 18–19, 2010 45% 52%
Rasmussen Reports August 18, 2010 48% 44%
Public Policy Polling July 27-Aug. 1, 2010 49% 46%
Rasmussen Reports July 28, 2010 49% 47%
Rasmussen Reports July 14, 2010 45% 48%
Rasmussen Reports June 22, 2010 47% 47%
Elway Poll June 9–13, 2010 47% 40%
University of Washington May 24–28, 2010 39% 42%
Rasmussen Reports May 25, 2010 48% 47%
University of Washington May 3–23, 2010 44% 40%
Rasmussen Reports May 4, 2010 48% 46%
Elway Poll April 29 – May 2, 2010 51% 34%
Survey USA April 19–22, 2010 42% 52%
Rasmussen Reports April 6, 2010 48% 46%
Daily Kos/Research 2K March 22–24, 2010 52% 41%
Rasmussen Reports March 9, 2010 46% 49%
Rasmussen Reports February 11, 2010 46% 48%
Moore Information January 24–25, 2010 43% 45%

West VirginiaWest Virginia

Special Election
Incumbent: Carte Goodwin(D)-Retiring
Winner: Joe Manchin

Source Date Democrat:
Joe Manchin
Republican:
John Raese
Election Results November 2, 2010 53% 43%
Rasmussen Reports October 31, 2010 50% 46%
Public Policy Polling October 30–31, 2010 51% 46%
Rasmussen Reports October 26, 2010 49% 46%
Public Policy Polling October 23–24, 2010 50% 44%
Fox News/Pulse Opinion Research October 23, 2010 46% 48%
Global Strategy Group October 17–20, 2010 48% 43%
Rasmussen Reports October 19, 2010 43% 50%
Fox News/Pulse Opinion Research October 16, 2010 45% 48%
Rasmussen Reports October 12, 2010 46% 49%
Marshall University/Orion Strategies October 11–12, 2010 48% 38%
CNN/Time Magazine October 8–12, 2010 45% 38%
Greenberg Quinlan Rosner October 7–11, 2010 49% 44%
Public Policy Polling October 9–10, 2010 48% 45%
Rasmussen Reports October 5, 2010 44% 50%
Fox News/Pulse Opinion Research October 2, 2010 43% 48%
Rasmussen Reports September 27, 2010 46% 48%
Rasmussen Reports September 19, 2010 50% 43%
Public Policy Polling September 18–19, 2010 43% 46%
Rasmussen Reports September 8, 2010 50% 45%
Rasmussen Reports August 29, 2010 48% 42%
MindField/Repass & Partners July 26 – August 2, 2010 54% 32%
Rasmussen Reports July 22, 2010 51% 35%

WisconsinWisconsin

Senate
Incumbent: Russ Feingold(D)
Winner: Ron Johnson

Source Date Democrat:
Russ Feingold
Republican:
Ron Johnson
Election Results November 2, 2010 47% 52%
YouGov October 25–30, 2010 47% 49%
Marist College/McClatchy October 26–28, 2010 42% 44%
Public Policy Polling October 26–28, 2010 44% 53%
Voter Consumer Research/We the People October 24–27, 2010 44% 48%
Rasmussen Reports October 25, 2010 46% 53%
St. Norbert College/WPR October 12–15, 2010 47% 49%
CNN/Time Magazine October 8–12, 2010 45% 48%
Rasmussen Reports October 11, 2010 45% 52%
Ipsos/Reuters October 8–11, 2010 44% 51%
Voter Consumer Research/We the People September 29 – October 4, 2010 41% 49%
Rasmussen Reports September 29, 2010 42% 54%
McClatchy/Marist College September 26–28, 2010 45% 52%
Fox News/Pulse Opinion Research September 25, 2010 44% 52%
CNN/Time Magazine September 17–20, 2010 45% 51%
Public Policy Polling/Daily Kos September 18–19, 2010 41% 52%
Rasmussen Reports September 15, 2010 44% 51%
Rasmussen Reports August 24, 2010 46% 47%
Rasmussen Reports August 10, 2010 46% 47%
Rasmussen Reports July 27, 2010 46% 48%
Rasmussen Reports July 13, 2010 46% 47%
Magellan Strategies July 12, 2010 45% 43%
Public Policy Polling June 26–27, 2010 45% 43%
Rasmussen Reports June 21, 2010 46% 45%
Rasmussen Reports May 25, 2010 46% 44%

Other races

Incumbents in Bold

State Democrat Republican Independent Primary Date
South DakotaSouth Dakota none John Thune none June 8

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