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South Dakota · U.S. Senate · 2026

South Dakota Senate race

General election in 96 days · Nov 3, 2026
The read · South Dakota Senate race

Mike Rounds has raised more than 4 times the next candidate.

Republican Mike Rounds has raised about $2.9M, more than 4 times any rival.

Brian Bengs reports 99% of campaign money from individuals.

$566K in itemized outside money is on file, led by DEFEND AMERICAN JOBS.

FEC filings, 2026 cycle. Money raised is net of transfers between a candidate's own committees.

Every candidate on file

Ranked by money raised. Each row shows the campaign money mix and a plain-English read.

Mike Rounds

Mike Rounds

RIncumbent
R · incumbent

Incumbent leans on PAC money. 48% from PACs and 46% from individuals.

46% individuals48% PACs6% other
$2.9M
raised
BB

Brian Bengs

I
I · challenger

Small-donor heavy. 99% from individuals and 1% from PACs.

99% individuals1% PACs0% other
$782K
raised
JB

Julian Beaudion

D
D · challenger

Small-donor heavy. 94% from individuals and 1% from PACs.

94% individuals1% PACs5% other
$228K
raised
JM

Justin McNeal

R
R · 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
Small donors & unclassified$154K
Banking & Financial$116K
Tech & Telecom$84K
Party Committee$62K
Energy & Utilities$20K
Health & Pharma$19K
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$43K
  • Google · company$42K
  • MARQUIS MANAGEMENT INC · company$30K
  • ARES MANAGEMENT · company$21K
  • BURWELL ENTERPRISE · company$21K

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 - $13M. 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
Small donors & unclassified$154K
Banking & Financial$116K
Tech & Telecom$84K
Party Committee$62K
Energy & Utilities$20K
Full profile: net worth, donors, trades, and votes ->

The tale of the tape

Money, side by side. Green marks the leader on each line.

Mike Rounds
R · incumbent
Mike Rounds
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