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U.S. Senator · Maine
Susan M. Collins
RepublicanState D+4119th CongressOn the ballot 2026
Typical swing score93#1 of 100 senators across tracked bills
Contact Susan M. Collins’s office
Official D.C. office details from the congress-legislators datasetWashington, D.C. office413 Dirksen Senate Office Building Washington DC 20510
Model
Directional: count only breaks toward the other partyWhy do scores change?v3default (selected)v2 model swing-v2
Signals to watch
What in this member’s state, record and ideology could move them, and in which direction. Their score is the same on every bill they haven’t committed to, so these are the things to watch.Could pull them toward Democrats · 6 signals
- StrongBacks 12 Democratic-led tracked billsSponsor or active cosponsor of 12 of the 865 tracked bills that were introduced by Democrats: S. 237, S. 272, S. 315, S. 567, S. 727 and 7 more.
- StrongMost moderate Senate RepublicanDW-NOMINATE +0.124 vs. the Senate Republican median of +0.558: 0.434 toward the Democrats (rank 1 of 53 by distance toward the Democrats).
- StrongOn the ballot Nov 3, 2026 in a competitive state (D+4)Term ends Jan 3, 2027; next general election Nov 3, 2026. Maine has a partisan lean of D+4. Members facing voters in a seat near even or leaning against their party have a reason to show independence.
- StrongHeritage Action 31 vs. Senate Republican avg 88Heritage Action (119th Congress, higher = more conservative) scored this member 31; the Senate Republican average is 88.1 (n=53). That is 57 points toward the Democrats.
Term and election
From the congress-legislators datasetOn the ballot 2026
- Current term
- January 3, 2021 – January 3, 2027
- Senate class
- Class 2
- Seniority
- Senior senator
- Next election
- November 3, 2026
- Years in office
- 29.8 years
Committees
Seats on a bill’s committee of referral add a in swing-v3- Senate Committee on AppropriationsChairmanMajority · 1st in seniority
- Subcommittee on Agriculture, Rural Development, Food and Drug Administration, and Related Agencies
- Subcommittee on Department of Defense
- Subcommittee on Legislative BranchEx Officio
- Subcommittee on Department of Homeland SecurityEx Officio
Voting ideology
first dimension, from VoteviewR median
D median
Collins← More liberal (−1)More conservative (+1) →
Their score of +0.124 is 0.43 to the left of the Senate Republican median (+0.558).
Advocacy scorecards
Their rating vs. the Senate Republican average- 119th Congress31Senate Republican average: 88 (n=53)
Swing score by bill
swing-v3 · a bill marks a member as committed to itShowing 51–100 of 845 tracked bills, best swing first
| Bill | Their role | Swing score · | |
|---|---|---|---|
| H.R. 845Pet and Livestock Protection ActSummary on Congress.gov | No position yet | 94
| Swing |
| H.R. 993Emerging Innovative Border Technologies ActSummary on Congress.gov |