John B. Larson
Democrat · CT-1 · 119th Congress
House Committee on Ways and Means
Influence Score
64.7
Moderately exposed
↑ +3.0 vs 118th (61.7)
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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
8.9
/ 12
Outside spendingmoney spent by groups to help elect them
0.2
/ 6
Spent to help elect them
$8,729
Outside groups that spent to help elect this member — this drives the outside-spending bar above
Lobbyinghow hard lobbyists push the committees this member sits on
8.0
/ 10
Revolving door (4 lobbyists) former staff now working as lobbyists
1.3
/ 3
Vote alignmenthow often they vote the way their donors want
6.9
/ 12
Contribution timingmoney arriving near key votes
1.8
/ 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
12.4
/ 16
Cluster network breadthhow many coordinated funding networks back this member
7.2
/ 10
Committee jurisdiction powerthe legislative reach of the committees this member sits on
3.3
/ 10
Foreign interestforeign-interest money — Israel-policy PACs and FARA-registered institutional lobbying allocated by committee jurisdiction
1.7
/ 12
Israel-policy PACs behind this score
AMERICAN ISRAEL PUBLIC AFFAIRS COMMITTEE POLITICAL ACTION COMMITTEE $6,695 direct
JSTREETPAC $3,750 direct
FARA institutional lobbying
This member’s committees are targeted by $45.81M 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 — $92K.
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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 51.4 Moderately exposed
117th · 2021-2023 47.6 Moderately exposed
118th · 2023-2025 61.7 Moderately exposed
119th · 2025-2027 64.7 Moderately exposed
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Biggest funding source
The single network behind the most money and influence
Total money from this network $103,000
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.
Share from this one network 1.7%
Amount from this network $51,500
Total from all networks $3,082,807
Networks contributing 398
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Who funds Larson
Every funding network we can measure, ranked by influence
score 64.7 · Moderately exposed · votes with them 81%
$1,571,041
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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 96.3%
Extra weight when money matches their committees 2.00×
Share of outside spending tied to their policy areas 55.6%
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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 7
Money that arrived near votes $12K
Distinct donors 16
Distinct employers 5
Share of their total fundraising 1.52%
Biggest clusters of timed money
HARTFORD HEALTHCARE
20240528 · 7 contributions · Health · 13d from vote (post)
$3K
HARTFORD HEALTHCARE
20240523 · 4 contributions · Health · 8d from vote (post)
$2K
HARTFORD HOSPITAL
20240529 · 1 contributions · Health · 14d from vote (post)
$2K
AMPER FINANCIAL SERVICES
20240605 · 1 contributions · Finance · 6d from vote (mixed)
$1K
FLEET BANK
20230518 · 1 contributions · Finance · 4d from vote (pre)
$1K
GUARDIAN LIFE INSURANCE
20240604 · 1 contributions · Finance · 7d from vote (mixed)
$1K
HARTFORD HOSPITAL
20240521 · 1 contributions · Health · 6d from vote (post)
$1K
ANTHEM BCBS
20240519 · 1 contributions · Health · 4d from vote (post)
$500
CT CHILDREN S HOSPITAL
20240523 · 1 contributions · Health · 8d from vote (post)
$500
FLEET BANK
20240423 · 1 contributions · Finance · 3d from vote (post)
$500
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Top Donors
Biggest sources of contributions, grouped by employer, this cycle
HARTFORD HEALTHCARE
24 contributions · cycle 2026
$21K
ANUSHKA
6 contributions · cycle 2026
$20K
DATA MAIL
5 contributions · cycle 2024
$16K
ANG
6 contributions · cycle 2022
$14K
LAZ PARKING
5 contributions · cycle 2026
$14K
HARTFORD DISTRIBUTORS
7 contributions · cycle 2024
$14K
GOODWIN COLLEGE
4 contributions · cycle 2026
$13K
LAZ PARKING
5 contributions · cycle 2022
$12K
DATA MAIL
5 contributions · cycle 2022
$12K
AVE CAPITAL
4 contributions · cycle 2022
$12K
EVOLUTION BENEFITS
7 contributions · cycle 2022
$12K
HARTFORD HEALTHCARE
19 contributions · cycle 2024
$12K
ROBERTI GLOBAL
4 contributions · cycle 2022
$12K
ALL WASTE
5 contributions · cycle 2022
$11K
HARTFORD DISTRIBUTORS
5 contributions · cycle 2022
$11K
A LOT MEDIA
3 contributions · cycle 2026
$10K
DATA MAIL
3 contributions · cycle 2026
$10K
EVOLUTION BENEFITS
3 contributions · cycle 2026
$10K
FAIRWAY INDEPNDENT MORTGAGE
3 contributions · cycle 2026
$10K
FIP CONSTRUCTION
3 contributions · cycle 2026
$10K
Where the outside money comes from
How much of the outside spending for and against John B. Larson comes from groups that disclose their donors versus groups that hide them
Total outside spending received $478
Disclosed outside spending $470
Dark-money outside spending $8
Share that is dark money 1.67%
Dark money tied to their policy areas $0
Groups hiding their donors 1
By funding network
WFP IE COMMITTEE
for them $8K · against them $0 · 1 transactions
$8K
THE PEOPLE UNITED PAC
for them $450 · against them $0 · 3 transactions
$450
DEMOCRACY PAC
for them $195 · against them $0 · 7 transactions
$195
NEA ADVOCACY FUND
for them $67 · against them $0 · 1 transactions
$67
SIERRA CLUB INDEPENDENT ACTION
for them $40 · against them $0 · 4 transactions
$40
Groups that hide their donors
1 smaller group under $500
tiny cost-allocation expenditures, not listed individually
$8
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
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
HOUSE MAJORITY PAC
DC · 1 dark entity
coverage 14.0%
$15.00M
CARE IN ACTION PAC
NY · 1 dark entity
coverage 14.0%
$6.60M
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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.

34 individuals who also gave to pro-Israel PACs contributed $59K to John B. Larson across 54 contributions.

Total from shared contributors $59K
Shared contributors 34
Contributions 54
By cycle
Cycle Shared donors Gifts Total
2022 8 15 $16K
2024 15 16 $10K
2026 18 23 $33K
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Revolving Door
2 former staff members who worked for John B. Larson or the committees they serve are now registered lobbyists.
Lobbyist Former position Firm Clients Filings Years
MATTHEW KREN Intern-Congressman John Larson; Law Clerk- US Senate Committee on Homeland Secur… ALCALDE & FAY 2 14 2023–2025
KATE LYNCH Senior Legislative Assistant, Representative John Larson; Legislative Assistant,… KLEIN/JOHNSON GROUP 1 1 2023–2025
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John B. Larson sits in the middle of this Congress on the index. There is a measured sponsor relationship, but the vote-alignment signal is weaker — money flows; the votes do not follow in lockstep.

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