Marion Michael (Mike) Rounds
Republican · SD Senate · 117th Congress
Senate Committee on Banking (Chair) · and Community Development (Chair) · and Investment (Chair) · Waste Management (Chair) · and Regulatory Oversight (Chair) · Commission on Security and Cooperation in Europe · Senate Committee on Appropriations · Rural Development · Food and Drug Administration · and Related Agencies · Health and Human Services · and Education · Veterans Affairs · Senate Committee on Armed Services · and Urban Affairs · Senate Committee on Environment and Public Works · Senate Committee on Foreign Relations · the Pacific · and International Cybersecurity Policy · Multilateral Institutions · and International Economic · and Environmental Policy · Senate Committee on Indian Affairs · Senate Committee on Veterans' Affairs · Senate Select Committee on Intelligence
Influence Score
73.9
Highly exposed
↑ +26.0 vs 118th (50.8)
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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
12.0
/ 12
Outside spendingmoney spent by groups to help elect them
0.1
/ 6
Spent to help elect them
$1,699
Outside groups that spent to help elect this member — this drives the outside-spending bar above
Spent to defeat this member
$15,395
Outside groups that spent to defeat this member (not counted in this score)
Lobbyinghow hard lobbyists push the committees this member sits on
9.6
/ 10
Revolving door (7 lobbyists) former staff now working as lobbyists
1.6
/ 3
Vote alignmenthow often they vote the way their donors want
12.0
/ 12
Contribution timingmoney arriving near key votes
< 0.1
/ 6
Stock tradesbuying stocks in industries they regulate
0.0
/ 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
8.6
/ 16
Cluster network breadthhow many coordinated funding networks back this member
0.2
/ 10
Committee jurisdiction powerthe legislative reach of the committees this member sits on
9.3
/ 10
Foreign interestforeign-interest money — Israel-policy PACs and FARA-registered institutional lobbying allocated by committee jurisdiction
5.8
/ 12
Israel-policy PACs behind this score
NORPAC $7,680 direct
REPUBLICAN JEWISH COALITION POLITICAL ACTION COMMITTEE (RJC-PAC) $5,000 direct
CITYPAC $1,000 direct
FARA institutional lobbying
This member’s committees are targeted by $207.16M 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 — $414K.
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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 49.8 Moderately exposed
117th · 2021-2023 73.9 Highly exposed
118th · 2023-2025 50.8 Moderately exposed
119th · 2025-2027 76.8 Highly exposed
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Biggest funding source
The single network behind the most money and influence
Total money from this network $46,000
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 11.5%
Amount from this network $227,200
Total from all networks $1,980,015
Networks contributing 322
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Who funds Rounds
Every funding network we can measure, ranked by influence
score 73.9 · Highly exposed · votes with them 100%
$3,446,511
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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 97.7%
Extra weight when money matches their committees 2.00×
Share of outside spending tied to their policy areas 0.0%
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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 $41K
Distinct donors 19
Distinct employers 6
Share of their total fundraising 9.65%
Biggest clusters of timed money
JANE STREET
20230929 · 4 contributions · Finance · 1d from vote (mixed)
$13K
BLACKSTONE
20240515 · 3 contributions · Finance · 1d from vote (pre)
$7K
FISHER INVESTMENTS
20240524 · 3 contributions · Finance · 8d from vote (post)
$7K
FOUNDERS FUND
20240405 · 3 contributions · Finance · 13d from vote (post)
$7K
HOGAN LOVELLS US LLP
20230531 · 2 contributions · Judiciary · 14d from vote (post)
$4K
APOLLO GLOBAL MANAGEMENT
20240930 · 2 contributions · Finance · 5d from vote (post)
$2K
APOLLO GLOBAL MANAGEMENT
20241216 · 2 contributions · Finance · 5d from vote (pre)
$1K
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Top Donors
Biggest sources of contributions, grouped by employer, this cycle
FEDERAL AVIATION ADMINISTRATION
58,030 contributions · cycle 2024
$6.43M
FEDERAL AVIATION ADMINISTRATION
62,034 contributions · cycle 2022
$6.33M
BOEING
73,207 contributions · cycle 2024
$4.38M
LOCKHEED MARTIN
31,278 contributions · cycle 2024
$3.12M
CHARTER
45,552 contributions · cycle 2024
$2.64M
BOEING
32,148 contributions · cycle 2026
$2.05M
GLOBAL WEALTH MANAGEMENT
11,040 contributions · cycle 2022
$2.02M
LOCKHEED MARTIN
16,265 contributions · cycle 2026
$1.92M
GLOBAL WEALTH MANAGEMENT
10,142 contributions · cycle 2024
$1.86M
NEW YORK LIFE INSURANCE
19,703 contributions · cycle 2024
$1.85M
PRICEWATERHOUSECOOPERS LLP
2,504 contributions · cycle 2026
$1.68M
NORTHROP GRUMMAN
35,356 contributions · cycle 2026
$1.49M
DELTA AIR LINES
7,515 contributions · cycle 2024
$1.48M
HOMEMAKER
3,181 contributions · cycle 2026
$1.42M
CHARTER
23,942 contributions · cycle 2026
$1.41M
SPACE EXPLORATION TECHNOLOGIES
19,558 contributions · cycle 2024
$1.38M
ERNST YOUNG U S LLP
1,378 contributions · cycle 2026
$1.36M
CENTENE
21,728 contributions · cycle 2022
$1.34M
MICROSOFT
29,873 contributions · cycle 2024
$1.20M
ELI LILLY AND
8,751 contributions · cycle 2026
$1.15M
Where the outside money comes from
How much of the outside spending for and against Marion Michael (Mike) Rounds comes from groups that disclose their donors versus groups that hide them
By funding network
SOUTH DAKOTA CONSERVATIVE PAC
for them $94K · against them $0 · 5 transactions
$94K
THE LINCOLN PROJECT
for them $0 · against them $8K · 3 transactions
$8K
REPUBLICAN LEADERSHIP FUND INC.
for them $1K · against them $0 · 1 transactions
$1K
EVERYTOWN FOR GUN SAFETY VICTORY FUND (EVERYTOWN VICTORY FUND)
for them $0 · against them $861 · 2 transactions
$861
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.

108 individuals who also gave to pro-Israel PACs contributed $144K to Marion Michael (Mike) Rounds across 127 contributions.

Total from shared contributors $144K
Shared contributors 108
Contributions 127
By cycle
Cycle Shared donors Gifts Total
2022 1 9 $212
2024 4 8 $21K
2026 104 110 $123K
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Revolving Door
5 former staff members who worked for Marion Michael (Mike) Rounds or the committees they serve are now registered lobbyists.
Lobbyist Former position Firm Clients Filings Years
TAYLOR REAVES Counsel & Legislative Assistant for Congressman Nehls; Legislative assistant for… PORTER WRIGHT MORRIS & ARTHUR LLP 4 11 2024–2025
JOSH JORGENSEN Former Health Legislative Aide to Senator Mike Rounds (R-SD). NATIONAL RURAL HEALTH ASSOCATION 1 1 2023–2023
AISLING REDMOND Legislative Correspondent, Senator Mike Rounds FIDELITY NATIONAL INFORMATION SYSTEMS, INC. AND SUBSIDIARIES 1 3 2023–2023
LIAM MACDONALD Sen. Mike Rounds (R-SD)Legislative Assistant; April 11, 2022-April 11, 2024 Rep.… GSK (FKA GLAXOSMITHKLINE INC.) 1 1 2024–2024
HILARY HALPERN Operations manager/Policy staff for Senator Rounds ROCKET LP FKA RKT HOLDINGS 1 3 2024–2024
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Marion Michael (Mike) Rounds's file shows clear influence markers across multiple categories for the top funding network, placing them in the upper range of this Congress. The pattern runs above what coincidence would produce, and the methodology page documents what each category requires.

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