One of two U.S. Senate seats representing the state of Wisconsin. Senators serve six-year terms and represent the entire state population.


There is no data about this race yet. General election on Nov 5, 2030.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Tammy Baldwin D | 49.4% | 3,387,839 | |
| 2022 | Ron Johnson R | 50.5% | 2,647,652 | |
| 2018 | Tammy Baldwin D | 55.4% | 2,657,799 | |
| 2016 | Ron Johnson R | 50.2% | 2,947,337 | |
| 2012 | Tammy Baldwin D | 51.5% | 3,005,925 | |
| 2010 | Ron Johnson R | 51.9% | 2,170,693 | |
| 2006 | Herb Kohl D | 67.3% | 2,137,043 | |
| 2004 | Russel D. Feingold D | 55.4% | 2,948,909 | |
| 2000 | Herb Kohl D | 61.6% | 2,539,181 | |
| 1998 | Russell D. Feingold D | 50.6% | 1,760,130 | |
| 1994 | Herb Kohl D | 58.3% | 1,565,090 | |
| 1992 | Russell D. Feingold D | 52.6% | 2,454,665 | |
| 1988 | Herbert H. Kohl D | 52.1% | 2,167,257 | |
| 1986 | Robert W. Kasten Jr. R | 50.9% | 1,481,962 | |
| 1982 | William Proxmire D | 63.6% | 1,544,883 |