| Election Name: | 2010 United States Senate election in Wisconsin |
| Country: | Wisconsin |
| Type: | presidential |
| Ongoing: | Yes |
| Previous Election: | 2004 United States Senate election in Wisconsin |
| Previous Year: | 2004 |
| Next Election: | 2016 United States Senate election in Wisconsin |
| Next Year: | 2016 |
| Election Date: | November 2, 2010 |
| Image1: | Ron Johnson, official portrait, 112th Congress.jpg |
| Nominee1: | Ron Johnson |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 1,125,932 |
| Percentage1: | 51.86% |
| Nominee2: | Russ Feingold |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 1,020,841 |
| Percentage2: | 47.02% |
| U.S. Senator | |
| Before Election: | Russ Feingold |
| Before Party: | Democratic Party (United States) |
| After Election: | Ron Johnson |
| After Party: | Republican Party (United States) |
The 2010 United States Senate election in Wisconsin was held on November 2, 2010. Incumbent Democratic Senator Russ Feingold lost re-election to a fourth term to Republican challenger Ron Johnson, a businessman and first-time candidate. Johnson was the first Republican to win a Senate election in Wisconsin since 1986. Feingold also became the fifth senator in a row from Wisconsin's Class 3 Senate seat to be defeated for re-election in the general election, and the seventh in a row overall to lose by a defeat in either the primary or general elections. Johnson was re-elected in 2016 in a rematch with Feingold.[1]
On the ballot
Declined
Former Republican Governor of Wisconsin Tommy Thompson had expressed an interest in challenging Feingold,[7] but ruled himself out of the race in April 2010.[8]
Johnson, a millionaire manufacturer and Tea Party movement favorite running for political office for the first time, was the frontrunner. In response to controversy over his ownership of stock in BP, Johnson said he would sell it when market conditions were favorable and possibly use the proceeds to help finance his Senate campaign.[9] Johnson was endorsed by: the Club for Growth, a fiscally conservative advocacy organization; former Wisconsin Republican Lt. Governor Margaret Farrow; Republican U.S. Senator Jim DeMint of South Carolina;[10] [11] and Wisconsin Republican U.S. Representatives Jim Sensenbrenner, Tom Petri and Paul Ryan.[12] Businessman David Westlake was endorsed by the Republican Liberty Caucus.[13] According to OpenSecrets, as of August 25, 2010, Johnson had invested $4.3 million of his own money into his campaign; this amount represented 71 percent of his campaign funds, while 27 percent of his campaign funds ($1.6 million) came from individual contributions.[14]
Feingold's first television ad was a positive ad released in March. In July 2010, Feingold's second 2010 television election ad attacked Johnson for alleged support for offshore drilling in the Great Lakes. Johnson quickly countered Feingold with a television ad of his own.[17] Feingold's logo was Moving Forward. In one ad, he emphasized independence and called himself a "penny pincher."[18] Johnson argued that manufacturers and accountants were underrepresented in the U.S. Senate, and there were too many lawyers (57 out of 100 members, including Feingold).[19] Feingold received the endorsements of the Milwaukee Journal Sentinel and the Green Bay Press-Gazette.[20] The Beloit Daily News endorsed Johnson.[21]
| Source | Ranking | As of | |
|---|---|---|---|
| Cook Political Report[24] | October 26, 2010 | ||
| Rothenberg[25] | October 22, 2010 | ||
| RealClearPolitics[26] | October 26, 2010 | ||
| Sabato's Crystal Ball[27] | October 21, 2010 | ||
| CQ Politics[28] | October 26, 2010 |
| Poll source | Russ Feingold (D) | Ron Johnson (R) | Other | Undecided | |||||
|---|---|---|---|---|---|---|---|---|---|
| Rasmussen Reports[29] | May 25, 2010 | 500 | ± 4.5% | 46% | 44% | 3% | 6% | ||
| Rasmussen Reports[30] | June 21, 2010 | 500 | ± 4.5% | 46% | 45% | 3% | 6% | ||
| Public Policy Polling[31] | June 26–27, 2010 | 638 | ± 3.9% | 45% | 43% | –– | 12% | ||
| Rasmussen Reports[32] | July 13, 2010 | 750 | ± 4.0% | 46% | 47% | 2% | 6% | ||
| University of Wisconsin, Madison[33] | July 15, 2010 | 500 | ± 3.9% | 33% | 28% | –– | 44% | ||
| Magellan Strategies[34] | July 20, 2010 | 1,145 | ± 2.9% | 45% | 43% | 3.7% | 8% | ||
| Rasmussen Reports | July 27, 2010 | 500 | ± 4.0% | 46% | 48% | 2% | 5% | ||
| Rasmussen Reports | August 11, 2010 | 750 | ± 4.0% | 46% | 47% | 2% | 5% | ||
| Rasmussen Reports[35] | August 24, 2010 | 750 | ± 4.0% | 46% | 47% | 1% | 5% | ||
| Rasmussen Reports | September 15, 2010 | 750 | ± 4.0% | 44% | 51% | 1% | 4% | ||
| Public Policy Polling[36] | September 18–19, 2010 | –– | ± 3.8% | 41% | 52% | –– | 7% | ||
| CNN/Time/Opinion Research[37] | September 17–21, 2010 | 963 | ± 3.0% | 45% | 51% | 2% | 2% | ||
| McClatchy/Marist[38] | September 26–28, 2010 | 806 | ± 3.5% | 45% | 52% | 1% | 3% | ||
| Rasmussen Reports | September 29, 2010 | 750 | ± 4.0% | 42% | 54% | 2% | 2% | ||
| We the People[39] | September 29 – October 4, 2010 | 400 | ± 5.0% | 41% | 49% | –– | –– | ||
| We the People/Ispos[40] | October 8, 2010 | 400 | ± 5.0% | 44% | 51% | –– | –– | ||
| Rasmussen Reports | October 11, 2010 | 750 | ± 4.0% | 45% | 52% | –– | 2% | ||
| CNN/Time/Opinion Research[41] | October 8–12, 2010 | 1,506 | ± 2.5% | 44% | 52% | 1% | –– | ||
| St. Norbert College/WPR[42] | October 12–15, 2010 | 402 | ± 5.0% | 47% | 49% | –– | 4% | ||
| Rasmussen Reports | October 25, 2010 | 750 | ± 4.0% | 46% | 53% | 0% | 1% | ||
| We the People[43] | October 24–27, 2010 | 400 | ± 5.0% | 44% | 48% | –– | 6% | ||
| Public Policy Polling[44] | October 26–28, 2010 | 1,372 | ± 2.6% | 44% | 53% | –– | 3% | ||
| Marist College[45] | October 26–28, 2010 | 811 | ± 4.5% | 45% | 52% | 1% | 2% |
| Poll source | Russ Feingold (D) | David Westlake (R) | Other | Undecided | |||||
|---|---|---|---|---|---|---|---|---|---|
| Public Policy Polling (report) | June 26–27, 2010 | 638 | ± 3.9% | 45% | 38% | -- | 17% | ||
| Rasmussen Reports (report) | June 21, 2010 | 500 | ± 4.5% | 47% | 41% | 4% | 7% | ||
| Rasmussen Reports (report) | May 25, 2010 | 500 | ± 4.5% | 47% | 38% | 7% | 8% | ||
| Public Policy Polling (report) | March 23, 2010 | 700 | ± 3.7% | 48% | 31% | — | 21% | ||
| Rasmussen Reports (report) | March 16, 2010 | 500 | ± 4.5% | 51% | 35% | 5% | 10% | ||
| Rasmussen Reports (report) | February 17, 2010 | 500 | ± 4.5% | 47% | 37% | 6% | 10% | ||
| Public Policy Polling (report) | November 20–22, 2009 | 767 | ± 3.5% | 47% | 32% | — | 21% |
| Poll source | Error | Russ Feingold (D) | Tommy Thompson (R) | Other | Undecided | ||||
|---|---|---|---|---|---|---|---|---|---|
| WPRI (report) | September 27–29, 2009 | 700 | ± 3.8% | 39% | 43% | — | 18% | ||
| Public Policy Polling (report) | November 20–22, 2009 | 767 | ± 3.5% | 50% | 41% | — | 10% | ||
| Rasmussen Reports (report) | January 26, 2010 | 500 | ± 4.5% | 43% | 47% | 6% | 4% | ||
| Rasmussen Reports (report) | February 17, 2010 | 500 | ± 4.5% | 43% | 48% | 3% | 5% | ||
| WPRI (report) | March 9, 2010 | 600 | ± 4.0% | 39% | 51% | — | 9% | ||
| Rasmussen Reports (report) | March 16, 2010 | 500 | ± 4.5% | 45% | 47% | 3% | 4% | ||
| Public Policy Polling (report) | March 23, 2010 | 700 | ± 3.7% | 47% | 44% | — | 9% |
| Poll source | Error | Russ Feingold (D) | Terrence Wall (R) | Other | Undecided | ||||
|---|---|---|---|---|---|---|---|---|---|
| Public Policy Polling (report) | November 20–22, 2009 | 767 | ± 3.5% | 48% | 34% | — | 19% | ||
| Rasmussen Reports (report) | February 17, 2010 | 500 | ± 4.5% | 47% | 39% | 6% | 7% | ||
| WPRI (report) | March 9, 2010 | 600 | ± 4.0% | 47% | 32% | 6% | 7% | ||
| Rasmussen Reports (report) | March 16, 2010 | 500 | ± 4.5% | 49% | 40% | 3% | 9% | ||
| Public Policy Polling (report) | March 23, 2010 | 700 | ± 3.7% | 48% | 34% | — | 18% |
Through December 31, 2010:
| Candidate (Party) | Net Receipts | Disbursements | Beginning Cash | Latest Cash On Hand | Debt | |
|---|---|---|---|---|---|---|
| Russ Feingold (D) | $13,947,563 | $15,544,093 | $2,516,119 | $919,585 | $0 | |
| Ron Johnson (R) | $15,509,297 | $15,316,651 | $0 | $192,646 | $8,708,465 | |
| Source: Federal Election Commission[46] | ||||||
Official campaign websites (Archived)