Incumbent Democratic Senator Tom Harkin did not run for reelection to a sixth term in office.
2014 United States Senate election in Iowa County results Precinct results Ernst: 40–50% 50–60% 60–70% 70–80% 80–90% >90%Braley: 40–50% 50–60% 60–70% 70–80% 80–90% >90%Tie: 40–50%
U.S. Representative Bruce Braley was unopposed for the Democratic nomination; the Republicans nominated State Senator Joni Ernst in a June 3 primary election. Douglas Butzier, who was the Libertarian nominee, died on October 14 in a single engine plane crash near Key West, Iowa . He was the pilot and the only person aboard the plane. He still appeared on the ballot, alongside Independents Bob Quast, Ruth Smith and Rick Stewart. Ernst defeated Braley in the general election. This was the first open Senate seat in Iowa since 1974 . Ernst was the first Republican to win this seat since Roger Jepsen in 1978 . Joni Ernst 's inauguration marked the first time since 1985 where Republicans held both United States Senate seats from Iowa.
Democratic primary
Bruce Braley ultimately faced no opposition in his primary campaign and became the Democratic nominee on June 3, 2014.
Candidates Declared Withdrew Bob Quast, businessman (running as an independent) Declined Endorsements Bruce Braley
Ako Abdul-Samad , state representative Marti Anderson , state representative Daryl Beall , state senator Bruce Bearinger, state representative Deborah Berry , state representative Dennis Black , state senator Joe Bolkcom , state senator Tod Bowman , state senator Chris Brase, state senator Dennis Cohoon , state representative Thomas G. Courtney , state senator Jeff Danielson , state senator David Dawson , state representative Dick Dearden , state senator Bill Dotzler , state senator Nancy Dunkel, state representative Robert Dvorsky , state senator John Forbes , state representative Ruth Ann Gaines , state representative Mary Gaskill , state representative Michael Gronstal , Majority Leader of the Iowa Senate and Chairman of the Democratic Legislative Campaign Committee Chris Hall , state representative Curtis Hanson, state representative Rita Hart, state senator Jack Hatch , state senator Lisa Heddens , state representative Rob Hogg , state senator Wally Horn , state senator Bruce Hunter , state representative Charles Isenhart , state representative David Jacoby , state representative Pam Jochum , President of the Iowa Senate Anesa Kajtazovic , state representative Jerry Kearns , state representative Dan Kelley , state representative Bob Kressig , state representative Vicki Lensing , state representative Daniel Lundby , state representative Jim Lykam , state representative Mary Mascher , state representative Liz Mathis , state senator Matt McCoy , state senator Helen Miller , state representative Dan Muhlbauer , state representative Jo Oldson , state representative Rick Olson , state representative Tyler Olson , state representative Scott Ourth , state representative Janet Petersen , state senator Todd Prichard, state representative Herman Quirmbach , state senator Amanda Ragan , state senator Joe Riding , state representative Patti Ruff, state representative Kirsten Running-Marquardt , state representative Brian Schoenjahn , state senator Joe Seng , state senator Mark Smith , state representative Steve Sodders , President Pro Tempore of the Iowa Senate Art Staed , state representative Sharon S. Steckman , state representative Sally Stutsman, state representative Rich Taylor, state senator Todd Taylor , state representative Phyllis Thede , state representative Roger Thomas , state representative Beth Wessel-Kroeschell , state representative Mary Jo Wilhelm , state senator Cindy Winckler , state representative Mary Wolfe, state representative Frank Wood , state representative Polling Hypothetical polling
Poll source Date(s) administered Sample size Margin of error Brad Anderson Bruce Braley Kevin McCarthy Undecided Harper Polling January 29, 2013 ? ? 3.83% 49.73% 3.83% 42.62%
Results Republican primary
The Republican primary was held on June 3, 2014. If no candidate won more than 35% of the vote, the nominee would have been chosen at a statewide convention. It would have been only the second time in 50 years that a convention picked a nominee and the first time since 2002, when then-State Senator Steve King won a convention held in Iowa's 5th congressional district to decide the Republican nominee for Congress. Having the nominee chosen by a convention led to fears that the increasingly powerful Ron Paul faction of the state party, led by Party Chairman A. J. Spiker , could have nominated an unelectable candidate.
The convention was scheduled to be held on June 14 but was then moved to July 12. Republican leaders, including Governor Terry Branstad and U.S. Senator Chuck Grassley , as well as four of the candidates for the nomination, criticized the move. Candidates Sam Clovis, Joni Ernst , Matthew Whitaker and David Young signed a letter to the Republican Party of Iowa asking them to move the convention date back, saying that "Essentially gifting [Bruce] Braley an additional 30 days to campaign in a vacuum, while reducing our nominee's time to raise funds and campaign as the general election candidate by an entire month – only serves to strengthen Braley's viability". Spiker responded that the move was necessary to accommodate the 27-day period that the Iowa Secretary of State 's office requires to certify the results of the primary. Spiker reiterated his position in September 2013, rejecting calls for a vote by the central committee to move the convention date. He said that nominating a candidate before the primary had been certified would break state law, "which outlines that a ballot vacancy does not exist until the canvass is completed and certified."
Secretary of State Matt Schultz was highly critical of Spiker, saying that "no political party should use the excuse of the final date of the statewide canvass to determine the date of its special nominating convention. Furthermore, to state that it is necessary to hold a special nominating convention after the conclusion of the state canvass is not only misleading, it is false." Following efforts by members of the central committee to call a special meeting to move the date back to June, Spiker agreed and a meeting was held on September 23. The central committee voted 16–1 to move the convention date back to June 14. Statewide Republican leaders and activists and members of the National Republican Senatorial Committee believe that the real reason for the attempt to delay the convention was to give the Ron Paul faction time to organize an insurgent effort to push through a candidate they support, which could have even been Spiker himself or State Party Co-chair David Fischer. The infighting has been traced back to the failure of the NRSC and allies of Governor Branstad and Senator Grassley to recruit a "top-tier" candidate for the race.
Ernst received widespread attention for a campaign ad she released in March 2014 where she employed a tongue-in-cheek comparison between her experience castrating pigs and her ability to cut "pork " in Congress. Many found the ad to be humorous and it was spoofed by late-night comedians including Jimmy Fallon and Stephen Colbert , while some found it to be in bad taste. Before the ad aired, Ernst had struggled in fundraising, and two polls of the Republican primary taken in February 2014 had shown her in second place, several points behind opponent Mark Jacobs. After it aired, a Suffolk University poll in early April showed her with a narrow lead and a Loras College poll showed her essentially tied with Jacobs. By May, she was being described by the media as the "strong front-runner".
In May 2014, Roll Call reported that the Republican primary campaign had become a proxy for the 2016 Republican presidential nomination , with Mitt Romney and Marco Rubio supporting Ernst, Rick Perry endorsing Whitaker and Rick Santorum backing Clovis. Jacobs, who had no such high-profile endorsements, ran as the "outsider".
Ultimately, Ernst won the primary with 56% of the vote, negating the need for a convention.
Candidates Declared Withdrew Declined Terry Branstad , Governor of Iowa Bob Brownell, Polk County Supervisor Steve Deace, radio talk show host Bill Dix , Minority Leader of the Iowa Senate David Fischer, Co-chair of the Republican Party of Iowa Steve Gaer, Mayor of West Des Moines Drew Ivers, Finance Chairman of the Republican Party of Iowa Steve King , U.S. Representative Ron Langston, businessman and former director of the Minority Business Development Agency Tom Latham , U.S. Representative Bill Northey , Iowa Secretary of Agriculture Kevin O'Brien, McDonald's store owner and operator Kim Reynolds , Lieutenant Governor of Iowa Rod Roberts , Director of the Iowa Department of Inspections and Appeals and candidate for governor in 2010 Matt Schultz , Iowa Secretary of State A. J. Spiker , Chairman of the Republican Party of Iowa Matt Strawn , former chairman of the Republican Party of Iowa Bob Vander Plaats , social conservative activist, candidate for governor in 2002 , 2006 and 2010 and nominee for lieutenant governor in 2006 David A. Vaudt , chairman of the Governmental Accounting Standards Board and former state auditor of Iowa Stuart Weinstein, orthopaedic surgeon, President of the American Academy of Orthopaedic Surgeons Brad Zaun , state senator Endorsements Joni Ernst
Rich Anderson , former state representative Robert Bacon , state representative Clel Baudler , state representative Nancy Boettger , state senator Mark Brandenburg , state representative Mark Costello , state representative Cecil Dolecheck , state representative Dean Fisher , state representative Shawn Hamerlinck , former state senator Megan Hess , state representative Hubert Houser , state senator David Johnson , state senator Tim Kapucian , state senator Renee Schulte , former state representative Amy Sinclair , state senator Rob Taylor , state representative Dan Zumbach , state senator Matthew Whitaker
Brad Banks , former Iowa Hawkeyes quarterback Robert Brownell, Polk County Supervisor Scott Cirksena, Mayor of Clive Creighton Cox, Urbandale City Councilman Greg Ganske , former U.S. Representative Bill Gustoff, Republican State Central Committee Member Chris Hagenow , state representative Kevin Koester , state representative Matt Mead , Governor of Wyoming John Mickelson, West Des Moines City Councilman Rick Perry , Governor of Texas and candidate for President in 2012 Jim Peters, Mayor of Adel Ralph Watts , state representative Jack Whitver , state senator Polling Poll source Date(s) administered Sample size Margin of error Sam Clovis Joni Ernst Mark Jacobs Paul Lunde Scott Schaben Matthew Whitaker Other Undecided Hill Research Consultants* February 12–13, 2014 300 ± 4% 6% 11% 22% — — 8% 3% 50% Public Policy Polling February 20–23, 2014 283 ± 5.8% 8% 13% 20% 3% 3% 11% — 42% Suffolk University April 3–8, 2014 224 ± 6.55% 6.7% 25% 22.77% — 1.34% 4.02% — 40.18% Loras College April 7–8, 2014 600 ± 4% 7.3% 18.1% 18.8% — 3.5% 4% — 48.2% Harper Polling^ April 30 – May 1, 2014 500 ± 4.38% 14% 33% 23% — 1% 3% — 26% Loras College May 12–13, 2014 600 ± 4% 9.5% 30.8% 19.3% — 2.3% 7.3% — 30.7% Public Policy Polling May 15–19, 2014 303 ± ? 14% 34% 18% 2% 1% 6% — 26% Des Moines Register May 27–30, 2014 400 ± 4.9% 11% 36% 18% — 2% 13% — 16%
^ Internal poll for Joni Ernst campaign * Internal poll for Mark Jacobs campaign Hypothetical polling
Poll source Date(s) administered Sample size Margin of error Sam Clovis Joni Ernst Mark Jacobs Paul Lunde Scott Shaben BobVander Plaats Matthew Whitaker David Young Undecided The Polling Company November 22–23, 2013 400 ± 4.9% 8% 8% 5% 1% 1% 28% 7% 4% 39%
Poll source Date(s) administered Sample size Margin of error Drew Ivers Steve King Tom Latham Bill Northey Kim Reynolds Matt Schultz BobVander Plaats David Vaudt Brad Zaun Undecided Public Policy Polling February 1–3, 2013 326 ± 5.4% — 41% 22% — 10% — 9% — — 17% — 42% 23% — — — 19% — — 15% — 50% 27% — — — — — — 23% Wenzel Strategies February 1–2, 2013 800 ± 3.44% — 34.3% 18.7% 3.2% 9.8% 1.4% 9.2% 0.5% — 19.5% — 42.9% 34.7% — — — — — — 22.4% Harper Polling January 29, 2012 4.52% 31.16% 26.13% — — — 16.08% — 6.03% 16.08% — 35.35% 21.72% — — — 19.70% — 3.03% 20.20% — 46% 29% — — — — — — 25%
Results Results by county: 30–40%
40–50%
50–60%
60–70%
70–80%
80–90%
90–100%
40–50%
50–60%
60–70%
70–80%
General election
Endorsements Bruce Braley (D)
Ako Abdul-Samad , state representative Marti Anderson , state representative Daryl Beall , state senator Bruce Bearinger, state representative Deborah Berry , state representative Dennis Black , state senator Joe Bolkcom , state senator Tod Bowman , state senator Chris Brase, state senator Dennis Cohoon , state representative Thomas G. Courtney , state senator Jeff Danielson , state senator David Dawson , state representative Dick Dearden , state senator Bill Dotzler , state senator Nancy Dunkel, state representative Robert Dvorsky , state senator John Forbes , state representative Ruth Ann Gaines , state representative Mary Gaskill , state representative Michael Gronstal , Majority Leader of the Iowa Senate and Chairman of the Democratic Legislative Campaign Committee Chris Hall , state representative Curtis Hanson, state representative Rita Hart, state senator Jack Hatch , state senator Lisa Heddens , state representative Rob Hogg , state senator Wally Horn , state senator Bruce Hunter , state representative Charles Isenhart , state representative David Jacoby , state representative Pam Jochum , President of the Iowa Senate Anesa Kajtazovic , state representative Jerry Kearns , state representative Dan Kelley , state representative Bob Kressig , state representative Vicki Lensing , state representative Daniel Lundby , state representative Jim Lykam , state representative Mary Mascher , state representative Liz Mathis , state senator Matt McCoy , state senator Helen Miller , state representative Dan Muhlbauer , state representative Jo Oldson , state representative Rick Olson , state representative Tyler Olson , state representative Scott Ourth , state representative Janet Petersen , state senator Todd Prichard, state representative Herman Quirmbach , state senator Amanda Ragan , state senator Joe Riding , state representative Patti Ruff, state representative Kirsten Running-Marquardt , state representative Brian Schoenjahn , state senator Joe Seng , state senator Mark Smith , state representative Steve Sodders , President Pro Tempore of the Iowa Senate Art Staed , state representative Sharon S. Steckman , state representative Sally Stutsman, state representative Rich Taylor, state senator Todd Taylor , state representative Phyllis Thede , state representative Roger Thomas , state representative Beth Wessel-Kroeschell , state representative Mary Jo Wilhelm , state senator Cindy Winckler , state representative Mary Wolfe, state representative Frank Wood , state representative Debates On August 29, Ernst and Braley announced their agreement to hold three televised debates in Davenport, Des Moines, and Sioux City, the first debate on September 28, the second on October 11, and the last on October 16.
Fundraising Candidate Raised Spent Cash on Hand Bruce Braley (D) $9,918,362 $10,069,945 $707,302 Joni Ernst (R) $9,206,690 $7,660,912 $2,244,366
Predictions Polling Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Joni Ernst (R) Other Undecided Public Policy Polling November 1–3, 2014 1,265 ± 2.8% 45% 48% 2% 5% 46% 49% — 5% Quinnipiac University October 28 – November 2, 2014 778 ± 3.5% 47% 47% 2% 4% Public Policy Polling October 30–31, 2014 617 ± ? 47% 48% — 5% Iowa Poll October 28–31, 2014 701 ± 3.7% 44% 51% 1% 4% YouGov October 25–31, 2014 1,112 ± 4.4% 43% 42% 3% 13% Fox News October 28–30, 2014 911 ± 3% 44% 45% 4% 8% Rasmussen Reports October 28–30, 2014 990 ± 3% 47% 48% 3% 3% CNN/ORC October 27–30, 2014 647 LV ± 4% 47% 49% — 4% 887 RV ± 3.5% 49% 43% — 7% Reuters/Ipsos October 23–29, 2014 1,129 ± 3.3% 45% 45% 4% 7% Quinnipiac October 22–27, 2014 817 ± 3.4% 45% 49% 2% 5% Loras College October 21–24, 2014 1,121 ± 2.93% 45% 44% 2% 8% CBS News/NYT/YouGov October 16–23, 2014 2,322 ± 3% 44% 44% 1% 11% NBC News/Marist October 18–22, 2014 772 LV ± 3.5% 46% 49% 1% 4% 1,052 RV ± 3% 46% 46% 2% 6% Gravis Marketing October 20–21, 2014 964 ± 3% 43% 49% — 8% Monmouth University October 18–21, 2014 423 ± 4.8% 46% 47% 5% 2% Quinnipiac University October 15–21, 2014 964 ± 3.2% 46% 48% 3% 4% Public Policy Polling October 15–16, 2014 714 ± ?% 48% 47% — 5% Suffolk University October 11–14, 2014 500 ± 4.4% 43% 47% 2% 7% Quinnipiac University October 8–13, 2014 967 ± 3.2% 45% 47% 3% 5% Rasmussen Reports October 8–10, 2014 957 ± 3% 45% 48% 1% 5% Iowa Poll October 3–8, 2014 1,000 ± 3.1% 46% 47% 3% 4% Morey Group October 4–7, 2014 1,000 ± 3.1% 39% 38% 2% 21% Magellan October 3, 2014 1,299 ± 2.8% 41% 50% — 9% Loras College October 1–3, 2014 600 ± 4% 42% 42% 4% 12% NBC News/Marist September 27 – October 1, 2014 778 LV ± 3.5% 44% 46% 1% 9% 1,093 RV ± 3% 45% 44% 1% 11% Greenberg Quinlan Rosner [permanent dead link ] September 25 – October 1, 2014 1,000 ± 2.09% 44% 45% 11% CBS News/NYT/YouGov September 20 – October 1, 2014 2,359 ± 2% 44% 43% 1% 12% Gravis Marketing September 29–30, 2014 522 ± 4% 41% 50% — 10% Greenberg Quinlan Rosner September 25–30, 2014 800 ± 3.46% 47% 46% — 7% Public Policy Polling September 25–28, 2014 1,192 ± 2.8% 42% 44% 4% 10% 43% 45% — 12% Harstad Research September 21–25, 2014 809 ± ? 42% 42% — 16% Iowa Poll September 21–24, 2014 546 ± 4.2% 38% 44% 6% 12% Rasmussen Reports September 17–18, 2014 750 ± 4% 43% 43% 4% 14% Fox News September 14–16, 2014 600 ± 4% 41% 41% 6% 12% Quinnipiac University September 10–15, 2014 1,167 ± 2.9% 44% 50% 1% 4% CNN/ORC September 8–10, 2014 608 LV ± 4% 49% 48% 1% 2% 904 RV ± 3.5% 50% 42% — 7% Loras College September 2–5, 2014 1,200 ± 2.82% 45% 41% — 14% CBS News/NYT/YouGov August 18 – September 2, 2014 1,764 ± 3% 44% 42% 2% 13% Public Policy Polling August 28–30, 2014 816 ± 3.4% 43% 45% — 12% Suffolk August 23–26, 2014 500 ± 4% 40% 40% 5% 15% Public Policy Polling August 22–24, 2014 915 ± 3.2% 41% 40% 5% 14% 42% 42% — 16% Rasmussen Reports August 11–12, 2014 750 ± 4% 43% 43% 6% 8% CBS News/NYT/YouGov July 5–24, 2014 2,056 ± 2.7% 45% 46% 2% 8% Gravis Marketing July 17–18, 2014 1,179 ± 3% 44% 43% — 13% NBC News/Marist July 7–13, 2014 1,599 ± 2.5% 43% 43% 1% 14% Quinnipiac University June 12–16, 2014 1,277 ± 2.7% 44% 40% — 16% Vox Populi Polling June 4–5, 2014 665 ± 3.8% 44% 49% — 7% Loras College June 4–5, 2014 600 ± 4% 42% 48% — 10% Rasmussen Reports June 4–5, 2014 750 ± 4% 44% 45% 3% 9% Public Policy Polling May 15–19, 2014 914 ± 3.3% 45% 39% — 16% Hickman Analytics April 24–30, 2014 500 ± 4.4% 44% 40% — 16% Suffolk University April 3–8, 2014 800 ± 3.5% 38% 30% — 33% Rasmussen Reports March 24–25, 2014 750 ± 4% 40% 37% — 23% Quinnipiac University Archived March 13, 2014, at the Wayback Machine March 5–10, 2014 1,411 ± 2.6% 42% 29% 1% 27% Public Policy Polling February 20–23, 2014 869 ± 3.3% 41% 35% — 23% Quinnipiac University Archived December 20, 2013, at the Wayback Machine December 10–15, 2013 1,617 ± 2.4% 44% 38% 1% 17% Harper Polling November 23–24, 2013 985 ± 3.12% 42% 36% — 22% Public Policy Polling July 5–7, 2013 668 ± 3.8% 45% 33% — 22%
Hypothetical polling
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Mark Jacobs (R) Other Undecided Public Policy Polling May 15–19, 2014 914 ± 3.3% 42% 36% — 22% Hickman Analytics April 24–30, 2014 500 ± 4.4% 43% 42% — 15% Magellan Strategies April 14–15, 2014 808 ± 3.45% 40% 41% 7% 12% Suffolk University April 3–8, 2014 800 ± 3.5% 37% 31% — 33% Rasmussen Reports March 24–25, 2014 750 ± 4% 41% 38% — 21% Quinnipiac University Archived March 13, 2014, at the Wayback Machine March 5–10, 2014 1,411 ± 2.6% 40% 31% 1% 28% Public Policy Polling February 20–23, 2014 869 ± 3.3% 41% 35% — 24% Quinnipiac University Archived December 20, 2013, at the Wayback Machine December 10–15, 2013 1,617 ± 2.4% 46% 37% 1% 16% Harper Polling November 23–24, 2013 985 ± 3.12% 41% 37% — 22% Public Policy Polling July 5–7, 2013 668 ± 3.8% 44% 32% — 24%
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Scott Schaben (R) Other Undecided Suffolk University April 3–8, 2014 800 ± 3.5% 38% 25% — 38%
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Matthew Whitaker (R) Other Undecided Public Policy Polling May 15–19, 2014 914 ± 3.3% 43% 36% — 21% Suffolk University April 3–8, 2014 800 ± 3.5% 38% 27% — 35% Rasmussen Reports March 24–25, 2014 750 ± 4% 40% 36% — 24% Quinnipiac University Archived March 13, 2014, at the Wayback Machine March 5–10, 2014 1,411 ± 2.6% 42% 30% 1% 26% Public Policy Polling February 20–23, 2014 869 ± 3.3% 40% 34% — 26% Quinnipiac University Archived December 20, 2013, at the Wayback Machine December 10–15, 2013 1,617 ± 2.4% 43% 40% 1% 17% Harper Polling November 23–24, 2013 985 ± 3.12% 41% 38% — 22% Public Policy Polling July 5–7, 2013 668 ± 3.8% 43% 34% — 23%
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Steve King (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 49% 38% — 13% Harper Polling January 29, 2013 523 ± 4.3% 39% 34% — 27%
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Sam Clovis (R) Other Undecided Public Policy Polling May 15–19, 2014 914 ± 3.3% 43% 34% — 23% Suffolk University April 3–8, 2014 800 ± 3.5% 38% 25% — 36% Rasmussen Reports March 24–25, 2014 750 ± 4% 44% 31% — 25% Quinnipiac University Archived March 13, 2014, at the Wayback Machine March 5–10, 2014 1,411 ± 2.6% 42% 27% 1% 29% Public Policy Polling February 20–23, 2014 869 ± 3.3% 42% 34% — 24% Quinnipiac University Archived December 20, 2013, at the Wayback Machine December 10–15, 2013 1,617 ± 2.4% 45% 34% 1% 20% Harper Polling November 23–24, 2013 985 ± 3.12% 40% 35% — 25% Public Policy Polling July 5–7, 2013 668 ± 3.8% 43% 31% — 25% Public Policy Polling February 1–3, 2013 846 ± 3.4% 49% 38% — 13% Harper Polling January 29, 2013 523 ± 4.3% 39% 34% — 27%
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Tom Latham (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 44% 41% — 15% Harper Polling January 29, 2013 523 ± 4.3% 33% 36% — 31%
Poll source Date(s) administered Sample size Margin of error Bruce Braley (D) Kim Reynolds (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 44% 37% — 19%
Poll source Date(s) administered Sample size Margin of error Chet Culver (D) Steve King (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 48% 41% — 11%
Poll source Date(s) administered Sample size Margin of error Chet Culver (D) Tom Latham (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 41% 45% — 13%
Poll source Date(s) administered Sample size Margin of error Chet Culver (D) Kim Reynolds (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 42% 41% — 17%
Poll source Date(s) administered Sample size Margin of error Chet Culver (D) BobVander Plaats (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 50% 36% — 14%
Poll source Date(s) administered Sample size Margin of error Tom Harkin (D) Terry Branstad (R) Other Undecided Public Policy Polling May 3–6, 2012 1,181 ± 2.85% 46% 41% — 12%
Poll source Date(s) administered Sample size Margin of error Tom Harkin (D) Steve King (R) Other Undecided Public Policy Polling May 3–6, 2012 1,181 ± 2.85% 48% 37% — 15% Public Policy Polling October 7–10, 2011 749 ± 3.6% 49% 42% — 9%
Poll source Date(s) administered Sample size Margin of error Tom Harkin (D) Tom Latham (R) Other Undecided Public Policy Polling May 3–6, 2012 1,181 ± 2.85% 46% 37% — 17% Public Policy Polling October 7–10, 2011 749 ± 3.6% 45% 42% — 13%
Poll source Date(s) administered Sample size Margin of error Dave Loebsack (D) Steve King (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 47% 40% — 13%
Poll source Date(s) administered Sample size Margin of error Dave Loebsack (D) Tom Latham (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 40% 43% — 17%
Poll source Date(s) administered Sample size Margin of error Dave Loebsack (D) Kim Reynolds (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 41% 39% — 20%
Poll source Date(s) administered Sample size Margin of error Dave Loebsack (D) BobVander Plaats (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 49% 34% — 17%
Poll source Date(s) administered Sample size Margin of error Tom Vilsack (D) Steve King (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 49% 39% — 11%
Poll source Date(s) administered Sample size Margin of error Tom Vilsack (D) Tom Latham (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 46% 42% — 12%
Poll source Date(s) administered Sample size Margin of error Tom Vilsack (D) Kim Reynolds (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 46% 38% — 16%
Poll source Date(s) administered Sample size Margin of error Tom Vilsack (D) BobVander Plaats (R) Other Undecided Public Policy Polling February 1–3, 2013 846 ± 3.4% 52% 35% — 14%
Results Counties that flipped from Democratic to Republican By congressional district Ernst won all 4 of the congressional districts, including one held by a Democrat.
See also
References
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