Mike Rounds
RIncumbentR · incumbent
Incumbent leans on PAC money. 48% from PACs and 46% from individuals.
46% individuals48% PACs6% other
$2.9M
raised
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South Dakota · U.S. Senate · 2026
South Dakota Senate race
General election in 51 days · Nov 3, 2026
The read · South Dakota Senate race
Mike Rounds has raised more than 4 times the next candidate.
Candidates in the South Dakota Senate race, 2026 report raising $3.9M between them. Mike Rounds reports $2.9M and Brian Bengs reports $782,050, a gap of $2.1M. Of what Mike Rounds reports, 46% came from individuals and 48% from PACs. Outside groups spent for ROUNDS, MIKE ($565,848).
Public campaign-finance filings, 2026 cycle. Candidate rows are filers on record, not final ballot lists. Totals are rounded to whole dollars.
Every candidate on file
Ranked by money raised. Each row shows the campaign money mix and a plain-English read.
BB
Brian Bengs
II · challenger
Small-donor heavy. 99% from individuals and 1% from PACs.
99% individuals1% PACs0% other
$782K
raised
JB
Julian Beaudion
DD · challenger
Small-donor heavy. 94% from individuals and 1% from PACs.
94% individuals1% PACs5% other
$228K
raised
JM
Justin McNeal
RR · challenger
Small-donor heavy. 99% from individuals and 0% from PACs.
99% individuals0% PACs1% other
$11K
raised
Where the money came from
$566K in itemized outside money is on file for this cycle. Candidate fundraising is shown separately below.
Ideological / Leadership$576K
Banking & Financial$88K
Party Committee$62K
Energy & Utilities$20K
Tech & Telecom$20K
Defense & Aerospace$10K
Small donors & unclassified$10K
Insurance$10K
Biggest itemized outside spenders
- DEFEND AMERICAN JOBS · super pac$412K
- SOUTH DAKOTA CONSERVATIVE PAC · super pac$154K
- NRSC · pac$62K
- MORTGAGE BANKERS ASSOCIATION POLITICAL ACTION COMMITTEE (MORPAC) · pac$48K
- AMERICAN EXPRESS COMPANY POLITICAL ACTION COMMITTEE (AXPPAC) · pac$10K
- BANK OF AMERICA CORPORATION FEDERAL PAC · pac$10K
- CHEVRON EMPLOYEES POLITICAL ACTION COMMITTEE - CHEVRON CORPORATION · pac$10K
- COMCAST CORPORATION & NBCUNIVERSAL POLITICAL ACTION COMMITTEE - FEDERAL · pac$10K
PACs vs the people
This split is from the candidates' own reported fundraising.
36%60%
36% PACs60% individuals4% other
The incumbent's record
Mike Rounds is the linked incumbent for this race.
Net worth (2025)
$8.0M
$3.5M+. up $5.7M since 2014.
Stock trades
None on file
No disclosed individual stock transactions.
Committees
6
Current full committee seats on file.
Where they sit
- Senate Committee on Banking, Housing, and Urban Affairs
- Senate Committee on Armed Services
- Senate Committee on Indian Affairs
- Commission on Security and Cooperation in Europe
- Senate Select Committee on Intelligence
- Senate Committee on Appropriations
Who funds them
This is the incumbent's own funding by donor sector for the cycle.
Ideological / Leadership$576K
Banking & Financial$88K
Party Committee$62K
Energy & Utilities$20K
Tech & Telecom$20K
Defense & Aerospace$10K
The tale of the tape
Money, side by side. Green marks the leader on each line.
Mike Rounds R · incumbent | vs | BB Brian Bengs I · challenger |
|---|---|---|
| $2.9M | Raised | $782K |
| $2.7M | Cash on hand | $51K |
| 48% | From PACs | 1% |
| 46% | From individuals | 99% |
| Ideological / Leadership | Top donor sector | Too few to rank |
| Yes | Incumbent | No |