Sen. Mike Rounds (R-SD) serves on the Senate Committee on Banking, Housing, and Urban Affairs, which has jurisdiction over the Securities & Investment sector. Securities & Investment represents 22.1% of his identifiable donor base ($0.76M), ranking third among donors to Republicans in the Senate.

How we built this: a statistical pattern surfaced from public records — FEC campaign finance, Senate/House Lobbying Disclosure Act filings, and Congress.gov. The donor concentration and the legislative action are concurrent facts; this does not imply contributions caused the action, that the member acted improperly, or that the bill specifically benefits the named sector. Generated July 6, 2026 · internal signal score 73/100.