One of two U.S. Senate seats representing the state of Maine. 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 | Angus S. King Jr. I | 52.1% | 821,072 | |
| 2020 | Susan Margaret Collins R | 51.0% | 818,955 | |
| 2018 | Jr. Angus S. King I | 54.3% | 634,345 | |
| 2014 | Susan M. Collins R | 68.5% | 603,759 | |
| 2012 | Angus King I | 52.9% | 700,599 | |
| 2008 | Susan M. Collins R | 61.4% | 723,810 | |
| 2006 | Olympia J. Snowe R | 74.4% | 544,949 | |
| 2002 | Susan M. Collins R | 58.4% | 504,899 | |
| 2000 | Olympia J. Snowe R | 68.9% | 634,872 | |
| 1996 | Susan M. Collins R | 49.2% | 606,707 | |
| 1994 | Olympia J. Snowe R | 60.3% | 511,491 | |
| 1990 | William S. Cohen R | 61.4% | 520,220 | |
| 1988 | George J. Mitchell D | 81.3% | 556,745 | |
| 1984 | William S. Cohen R | 73.3% | 551,378 | |
| 1982 | George J. Mitchell D | 60.9% | 459,701 |