Michael K. Simpson
Republican · ID-2 · 119th Congress
and Related Agencies (Chair) · House Committee on Appropriations · Health and Human Services
Influence Score
70.4
Moderately exposed
↓ -1.1 vs 118th (71.5)
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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
8.8
/ 12
Outside spendingmoney spent by groups to help elect them
3.3
/ 6
Spent to help elect them
$3,154,123
Outside groups that spent to help elect this member — this drives the outside-spending bar above
Spent to defeat this member
$860,091
Outside groups that spent to defeat this member (not counted in this score)
Lobbyinghow hard lobbyists push the committees this member sits on
4.6
/ 10
Revolving door former staff now working as lobbyists
0.0
/ 3
Vote alignmenthow often they vote the way their donors want
7.0
/ 12
Contribution timingmoney arriving near key votes
2.5
/ 6
Stock tradesbuying stocks in industries they regulate
0.4
/ 1
Dark moneyfunding from groups that hide their donors
0.0
/ 2
Outbound money distributionmoney this member sends out to the party and to colleagues
10.9
/ 16
Cluster network breadthhow many coordinated funding networks back this member
6.4
/ 10
Committee jurisdiction powerthe legislative reach of the committees this member sits on
4.0
/ 10
Foreign interestforeign-interest money — Israel-policy PACs and FARA-registered institutional lobbying allocated by committee jurisdiction
8.3
/ 12
Israel-policy PACs behind this score
AMERICAN ISRAEL PUBLIC AFFAIRS COMMITTEE POLITICAL ACTION COMMITTEE $21,256 direct
FARA institutional lobbying
This member’s committees are targeted by $164.42M 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 — $329K.
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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 44.7 Least exposed
117th · 2021-2023 54.9 Moderately exposed
118th · 2023-2025 71.5 Highly exposed
119th · 2025-2027 70.4 Moderately exposed
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Biggest funding source
The single network behind the most money and influence
Total money from this network $1,323,160
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 1.5%
Amount from this network $37,000
Total from all networks $2,424,276
Networks contributing 368
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Who funds Simpson
Every funding network we can measure, ranked by influence
score 70.4 · Moderately exposed · votes with them 81%
$4,706,623
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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 95.4%
Extra weight when money matches their committees 2.00×
Share of outside spending tied to their policy areas 93.8%
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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 8
Money that arrived near votes $21K
Distinct donors 9
Distinct employers 8
Share of their total fundraising 2.09%
Biggest clusters of timed money
ROUTE ONE INVESTMENT
20240426 · 2 contributions · Finance · 6d from vote (mixed)
$5K
FISHER INVESTMENTS
20240521 · 1 contributions · Finance · 1d from vote (mixed)
$3K
FOUNDERS FUND
20240320 · 1 contributions · Finance · 12d from vote (post)
$3K
J W CHILDS ASSOCIATES
20240320 · 1 contributions · Finance · 12d from vote (post)
$3K
STEPHENS
20240320 · 1 contributions · Finance · 12d from vote (post)
$3K
UBS FINANCIAL
20240515 · 1 contributions · Finance · 7d from vote (mixed)
$1K
CORNELLY SMYSER LLP
20231117 · 1 contributions · Judiciary · 13d from vote (pre)
$1K
SCOGGIN CAPITAL INVESTMENT
20240418 · 1 contributions · Finance · 2d from vote (pre)
$1K
META
20230420 · 1 contributions · Tech · 6d from vote (pre)
$500
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Top Donors
Biggest sources of contributions, grouped by employer, this cycle
NATIVE AMERICAN NATION
51 contributions · cycle 2024
$119K
NATIVE AMERICAN NATION
28 contributions · cycle 2026
$70K
NATIVE AMERICAN NATION
19 contributions · cycle 2022
$40K
HOMEMAKER
7 contributions · cycle 2022
$15K
APERCEN
4 contributions · cycle 2024
$13K
ERGON
4 contributions · cycle 2024
$13K
ERGON
4 contributions · cycle 2022
$12K
NATIVE AMERICAN TRIBE
4 contributions · cycle 2026
$9K
SHOCKEY SCOFIELD SOLUTIONS
3 contributions · cycle 2024
$9K
APERCEN
3 contributions · cycle 2022
$9K
CASSIDY ASSOCIATES
10 contributions · cycle 2024
$8K
VAN SCOYOC ASSOCIATES
7 contributions · cycle 2024
$8K
VAN SCOYOC ASSOCIATES
8 contributions · cycle 2022
$8K
NATIVE AMERICAN TRIBE
5 contributions · cycle 2024
$7K
ANDURIL INDUSTRIES
2 contributions · cycle 2026
$7K
ATS COMMUNICATIONS
4 contributions · cycle 2026
$7K
CLEAR PATH ENERGY
2 contributions · cycle 2026
$7K
ERGON
2 contributions · cycle 2026
$7K
IDAHO SCIENTIFIC
2 contributions · cycle 2026
$7K
ANDURIL INDUSTRIES
2 contributions · cycle 2024
$7K
Where the outside money comes from
How much of the outside spending for and against Michael K. Simpson comes from groups that disclose their donors versus groups that hide them
By funding network
AMERICAN DREAM FEDERAL ACTION
for them $1.59M · against them $0 · 22 transactions
$1.59M
ADPAC INDEPENDENT EXPENDITURES COMMITTEE
for them $824K · against them $0 · 18 transactions
$824K
AMERICA PROUD PAC
for them $0 · against them $721K · 25 transactions
$721K
EARN INTERNATIONAL UNION OF OPERATING ENGINEERS
for them $499K · against them $0 · 7 transactions
$499K
CITIZENS FOR RESPONSIBLE ENERGY SOLUTIONS INC.
for them $175K · against them $0 · 6 transactions
$175K
SLF PAC
for them $151K · against them $0 · 6 transactions
$151K
SNAKE RIVER CITIZENS FOR LIBERTY PAC, INC.
for them $0 · against them $139K · 8 transactions
$139K
TURNOUT 2022
for them $91K · against them $0 · 4 transactions
$91K
COMMUNITY HEALTH COUNCIL PAC DBA BREAST CANCER HEALTH COUNCIL PAC
for them $10K · against them $0 · 1 transactions
$10K
EVERYTOWN FOR GUN SAFETY VICTORY FUND (EVERYTOWN VICTORY FUND)
for them $0 · against them $862 · 2 transactions
$862
HUNTER ACTION FUND (HAF)
for them $506 · against them $0 · 1 transactions
$506
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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.

11 individuals who also gave to pro-Israel PACs contributed $527K to Michael K. Simpson across 20 contributions.

Total from shared contributors $527K
Shared contributors 11
Contributions 20
By cycle
Cycle Shared donors Gifts Total
2022 4 7 $208K
2024 6 9 $313K
2026 4 4 $6K
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Michael K. Simpson 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