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Capitol Trail · All data sourced from public records: FEC campaign finance filings, Senate/House Lobbying Disclosure Act filings, and Congressional voting records. Analysis reflects statistical patterns only — it does not imply corruption, intent, or quid pro quo. Donor alignment shows correlation between financial relationships and policy, not causation or control. Capitol Trail makes no claims about the motivations or character of any individual, organization, or political party. Not affiliated with any political party, campaign, or government agency. For data corrections or questions, contact us at capitol-trail.com/contact.

Overview›South Dakota

SD

South Dakota

Congressional Delegation

$20.8M

total tracked contributions

Members

3

Senators

2

Representatives

1

Republicans

3

U.S. SENATORS (2)

John Thune

John Thune

R · Senator

$10.1M

total raised

Mike Rounds

Mike Rounds

R · Senator

$3.5M

total raised

U.S. REPRESENTATIVES (1)

Dusty Johnson

Dusty Johnson

R · Rep.

$7.3M

total raised

DONATIONS BY PARTY

REPUBLICAN (3 members)$20,833,458 · 100.0%

DATA SOURCES FEC contribution data · Congress.gov member data · FEC reporting periods 2021–2026