Susan M. Collins
Republican · ME Senate · 119th Congress
Senate Committee on Appropriations (Chair) · Housing and Urban Development (Chair) · and Related Agencies (Chair) · Senate Committee on Health (Chair) · Senate Special Committee on Aging (Chair) · Rural Development · Food and Drug Administration · Health and Human Services · and Education · Veterans Affairs · Foreign Operations · and Related Programs · and Pensions · Senate Select Committee on Intelligence
Influence Score
88.4
Most exposed
↑ +17.1 vs 118th (71.3)
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This score measures financial influence across twelve categories. Each bar shows how this member compares to all others in Congress. Longer bars mean more exposure.

Score breakdown — twelve categories
Contributionsmoney from PACs (political action committees) and individual donors
6.8
/ 12
Outside spendingmoney spent by groups to help elect them
3.8
/ 6
Spent to help elect them
$4,220,893
Outside groups that spent to help elect this member — this drives the outside-spending bar above
Spent to defeat this member
$60,236
Outside groups that spent to defeat this member (not counted in this score)
Lobbyinghow hard lobbyists push the committees this member sits on
9.2
/ 10
Revolving door (31 lobbyists) former staff now working as lobbyists
3.0
/ 3
Vote alignmenthow often they vote the way their donors want
6.2
/ 12
Contribution timingmoney arriving near key votes
2.3
/ 6
Stock tradesbuying stocks in industries they regulate
0.0
/ 1
Dark moneyfunding from groups that hide their donors
< 0.1
/ 2
Outbound money distributionmoney this member sends out to the party and to colleagues
11.4
/ 16
Cluster network breadthhow many coordinated funding networks back this member
7.7
/ 10
Committee jurisdiction powerthe legislative reach of the committees this member sits on
10.0
/ 10
Foreign interestforeign-interest money — Israel-policy PACs and FARA-registered institutional lobbying allocated by committee jurisdiction
10.3
/ 12
Israel-policy PACs behind this score
REPUBLICAN JEWISH COALITION POLITICAL ACTION COMMITTEE (RJC-PAC) $14,372 direct
AMERICAN ISRAEL PUBLIC AFFAIRS COMMITTEE POLITICAL ACTION COMMITTEE $4,994 direct
NORPAC $3,500 direct
FARA institutional lobbying
This member’s committees are targeted by $324.76M in lobbying from FARA-registered firms representing South Korea, Japan, Saudi Arabia. This exposure is weighted at 0.2% of face value in the score — $650K.
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Score across four congresses
Score and tier for each Congress. Members are ranked against others in the same Congress, so tiers are comparable across rows. Raw scores reflect different data availability per Congress.
Congress Score Tier
116th · 2019-2021 86.5 Most exposed
117th · 2021-2023 84.6 Most exposed
118th · 2023-2025 71.3 Highly exposed
119th · 2025-2027 88.4 Most exposed
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Biggest funding source
The single network behind the most money and influence
Network SLF PAC
Total money from this network $266,724
Number of funding networks contributing 1
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Where most of the money comes from
What share of their combined contributions and outside spending comes from a single network. Party committees are excluded.
Network SLF PAC
Share from this one network 35.4%
Amount from this network $1,638,724
Total from all networks $4,633,950
Networks contributing 457
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Who funds Collins
Every funding network we can measure, ranked by influence
score 88.4 · Most exposed · votes with them 78%
$5,421,865
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Does the money match their power?
Whether their money comes from the industries their committees actually oversee
Money from industries they regulate 1.5%
Extra weight when money matches their committees 2.00×
Share of outside spending tied to their policy areas 9.6%
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Money timed to key votes
Donations arriving near key votes in the policy areas this member regulates
Times money arrived near a vote 11
Money that arrived near votes $29K
Distinct donors 13
Distinct employers 10
Share of their total fundraising 1.88%
Biggest clusters of timed money
FISHER INVESTMENTS
20240524 · 2 contributions · Finance · 8d from vote (post)
$7K
OPPIDAN INVESTMENT
20240329 · 2 contributions · Finance · 6d from vote (post)
$7K
JIM NORTON TOYOTA
20240330 · 1 contributions · Transportation · 11d from vote (pre)
$3K
SOUTHWEST AIRLINES
20240502 · 1 contributions · Transportation · 1d from vote (mixed)
$2K
GREENBERG RAPP FINANCIAL
20240927 · 1 contributions · Finance · 2d from vote (post)
$2K
MABREY BANK
20240330 · 1 contributions · Finance · 7d from vote (post)
$2K
BOULEVARD FINANCIAL
20241230 · 1 contributions · Finance · 9d from vote (post)
$2K
KB FINANCIAL COMPANIES
20231219 · 1 contributions · Finance · 13d from vote (post)
$2K
BOULEVARD FINANCIAL
20231219 · 1 contributions · Finance · 13d from vote (post)
$1K
HAMILTON INSURANCE
20240402 · 1 contributions · Finance · 10d from vote (post)
$1K
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Top Donors
Biggest sources of contributions, grouped by employer, this cycle
BLACKSTONE
24 contributions · cycle 2026
$82K
KKR
20 contributions · cycle 2026
$70K
LOCKHEED MARTIN
54 contributions · cycle 2024
$56K
AMERICAN AIRLINES
29 contributions · cycle 2026
$38K
SOUTHWEST AIRLINES
25 contributions · cycle 2024
$34K
CHARTER COMMUNICATIONS
14 contributions · cycle 2024
$22K
DCI
6 contributions · cycle 2026
$21K
ATLAS
8 contributions · cycle 2026
$18K
FTX US
5 contributions · cycle 2022
$17K
BLUFF POINT ASSOC
6 contributions · cycle 2026
$17K
LIONSGATE
6 contributions · cycle 2026
$17K
CAPITAL
6 contributions · cycle 2026
$16K
ELLIOTT INVESTMENT MANAGEMENT
5 contributions · cycle 2026
$16K
HOMEMAKER
6 contributions · cycle 2026
$16K
BRELAND HOMES
6 contributions · cycle 2026
$15K
JANE STREET
6 contributions · cycle 2026
$15K
THE CAMBRIA
5 contributions · cycle 2026
$15K
AXXESS
6 contributions · cycle 2022
$15K
TARGETED VICTORY
13 contributions · cycle 2026
$14K
KIRKLAND ELLIS
6 contributions · cycle 2026
$14K
Where the outside money comes from
How much of the outside spending for and against Susan M. Collins comes from groups that disclose their donors versus groups that hide them
Total outside spending received $1.31M
Disclosed outside spending $1.07M
Dark-money outside spending $237K
Share that is dark money 18.07%
Dark money tied to their policy areas $0
Groups hiding their donors 2
By funding network
SMP
for them $0 · against them $54.88M · 172 transactions
$54.88M
DSCC
for them $0 · against them $9.29M · 8 transactions
$9.29M
WOMEN VOTE
for them $0 · against them $9.01M · 78 transactions
$9.01M
PRIORITIES USA ACTION
for them $0 · against them $6.49M · 118 transactions
$6.49M
1820 PAC
for them $5.41M · against them $0 · 12 transactions
$5.41M
NATIONAL ASSOCIATION OF REALTORS CONGRESSIONAL FUND
for them $4.91M · against them $0 · 29 transactions
$4.91M
VOTE FOR EQUALITY
for them $0 · against them $4.20M · 67 transactions
$4.20M
THE LINCOLN PROJECT
for them $0 · against them $3.62M · 29 transactions
$3.62M
NRSC
for them $2.93M · against them $0 · 59 transactions
$2.93M
SLF PAC
for them $2.78M · against them $0 · 68 transactions
$2.78M
VOTEVETS
for them $0 · against them $2.57M · 5 transactions
$2.57M
CHANGE NOW
for them $0 · against them $2.31M · 20 transactions
$2.31M
FF PAC
for them $0 · against them $2.15M · 12 transactions
$2.15M
AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E
for them $0 · against them $2.00M · 9 transactions
$2.00M
DEMOCRACY PAC
for them $0 · against them $1.92M · 144 transactions
$1.92M
Groups that hide their donors
c4-funded super PAC · support
$233K
c4-funded super PAC · oppose
$4K
Likely donors behind the dark money supporting this member Inferred
Donors who fund the disclosed PACs in the same network as the hidden groups above. "Coverage" is how many of that network's disclosed groups a donor funds — the more they fund, the more likely they also back the hidden group.
NEVADANS FOR STEVEN HORSFORD
NV · 1 dark entity
coverage 21.0%
$80K
TITUS FOR CONGRESS
NV · 1 dark entity
coverage 21.0%
$80K
SUSIE LEE FOR CONGRESS
NV · 1 dark entity
coverage 21.0%
$79K
NRCC
DC · 1 dark entity
coverage 21.0%
$840K
MILLER-MEEKS FOR CONGRESS
IA · 1 dark entity
coverage 21.0%
$109K
GEORGE SOROS
SOROS FUND MANAGEMENT · NY · 1 dark entity
coverage 14.0%
$525.74M
SMP
DC · 1 dark entity
coverage 14.0%
$81.00M
BLACKPAC
DC · 1 dark entity
coverage 14.0%
$47.25M
AB PAC
DC · 1 dark entity
coverage 14.0%
$25.50M
HMP
DC · 1 dark entity
coverage 14.0%
$15.00M
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Pro-Israel network donors
This counts contributions to this member from individuals whose FEC filings also show contributions to one of the 16 pro-Israel political action committees tracked by the Index. It is a measure of donor overlap — not a claim about why any individual gave, and not part of the influence score.

414 individuals who also gave to pro-Israel PACs contributed $947K to Susan M. Collins across 560 contributions.

Total from shared contributors $947K
Shared contributors 414
Contributions 560
By cycle
Cycle Shared donors Gifts Total
2022 8 9 $13K
2024 7 11 $17K
2026 405 540 $917K
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Revolving Door
17 former staff members who worked for Susan M. Collins or the committees they serve are now registered lobbyists.
Lobbyist Former position Firm Clients Filings Years
WILLIAM BALL Sen. Susan Collins, 2010-2015; House Committee on Natural Resources, 2015-2020 FOLEY & LARDNER LLP 20 59 2023–2023
MIKE WAKEFIELD Intern, Sen. John Warner; LA, Leg. Counsel, Rep. Mike Coffman; Military LA, Coun… HOLLAND & KNIGHT LLP 17 17 2025–2025
MICHAEL DIROMA Deputy Assistant Secretary of the Treasury for Legislative Affairs (Internationa… DIROMA ECK & CO. LLP 10 67 2023–2025
AMANDA LINCOLN Staff Director, Senate Health, Education, Labor, and Pensions Committee; Legisla… BUCHANAN INGERSOLL & ROONEY PC 8 24 2025–2025
ROWAN BOST Legislative Aide, Office of Senator Susan Collins; Legislative Correspondent, Of… STEPTOE LLP 6 8 2023–2025
ROBERT EPPLIN LD Sen. Collins; LA Sen. Smith; Analyst, OMB Budget Review Division; Prof Staff,… EPPLIN STRATEGIC PLANNING 4 26 2023–2025
MICHELE PEARCE Staff Lead, Subcmte on Readiness, House Armed Services Committee; Senior Defense… COVINGTON & BURLING LLP 4 4 2023–2023
ROBERT EPPLIN LD Sen. Collins; LA Sen. Smith; Analyst, OMB Budget Review Division; Prof Staff,… KED STRATEGIES, LLC 4 34 2023–2025
MARY DIETRICH Prof Staff, Senate Appropriations Committee; Clerk, Senate Appropriations Commit… KED STRATEGIES, LLC 4 33 2023–2024
KEVIN KELLEY Communications Director of Senator Susan Collins; Staff Director for the US Sena… KED STRATEGIES, LLC 3 33 2023–2025
MICHAEL BOPP Associate Dir. at OMB; Staff dir. & Chief Counsel, Sen. Homeland Security & Gov.… GIBSON, DUNN & CRUTCHER LLP 2 5 2023–2025
MEREDITH COOLIDGE Intern, Office of Senator Susan Collins STEPTOE LLP 2 3 2023–2023
DARCI GREENACRE Director of Scheduling, Senator Susan Collins; Lobbyist DRUMMOND WOODSUM STRATEGIC CONSULTING LLC 2 4 2023–2025
ERICA FITZGERALD Dep. Chief of Staff, LD - Rep. Spartz (IN); LD - Rep. Van Duyne (TX); Dep. Parli… SCHNEIDER ELECTRIC 1 9 2024–2025
MORGAN CASHWELL Legislative Aide for Senator Collins, 2010-2013; Legislative Assistant for Congr… THE NATURE CONSERVANCY 1 1 2023–2023
JONATHAN FERRO Deputy General Counsel, Committee on Homeland Security. Deputy Chief of Staff/Le… AMAZON.COM SERVICES LLC 1 1 2023–2023
ALLISON FEIKES Legislative Assistant, Sen. Susan Collins; Legislative Assistant, Sen Mike Braun… FGS GLOBAL (US) LLC (FKA FGH HOLDINGS LLC) 1 2 2025–2025
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Susan M. Collins ranks among the most exposed members of this Congress — the top tier on the index. The markers run across several of the twelve categories for the same funding network: contributions, outside spending, lobbying inside the policy areas this member regulates, vote alignment, and contribution timing among them. The score measures financial exposure in the public record; it is not a finding of intent or wrongdoing.

Data: FEC (Federal Election Commission) filings · 118th–119th Congress · lobbying disclosures · VoteView recorded votes
All findings derived programmatically from public records · No prior knowledge required