Who raised the most money in the 2026 South Dakota Senate race?

Mike Rounds (Republican) raised $3.8M and had $230K in outside spending on their side.

Which outside groups spent the most on the 2026 South Dakota Senate race?

Retire Career Politicians ($1.1M), South Dakota Conservative PAC ($985K), Freedom From Politics ($773K).

Which PACs gave the most to candidates in the 2026 South Dakota Senate race?

NRSC gave $62K to Mike Rounds; Mortgage Bankers Association Political Action Committee (Morpac) gave $48K to Mike Rounds; Chevron Employees Political Action Committee - Chevron Corporation gave $15K to Mike Rounds.

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2026 general election

South Dakota Senate

The candidate who raised the most money won. · Incumbent re-elected

$8.9M was spent on the 2026 South Dakota Senate race: $5.7M raised by the campaigns, $1.7M of it from PACs, plus $3.3M from outside groups (FEC filings through Oct 14, 2026). Mike Rounds (Republican) won and was the top fundraiser.

Total money

$8.9M

Raised by campaigns

$5.7M

PAC checks

$1.7M

Outside money

$3.3M

Candidates

Raised by the campaign Outside money supportingOutside money attacking Democrat Republican Other

Mike RoundsRepublican, incumbent

✓ Won

Raised: $3.8M
Spent: $4.4M
From individuals: $1.6M
From PACs: $1.6M
From party: $62K
Own money & loans: $0
Outside money for: $230K
Outside money against: $1.2M

Who paid: 43% of Rounds's money came from PACs

Corporate $905K (50%)Trade group $383K (21%)Leadership PAC $196K (11%)Membership $131K (7%)Union $18K (1%)Super PAC $10K (1%)Party $62K (3%)Other $106K (6%)

Young Victory Committee Party$62K
Mortgage Bankers Association Trade group$48K
Chevron Corporation Corporate$15K
American Bankers Association (Aba) Trade group$13K
Nextera Energy, Inc Corporate$10K
Council of Insurance Agents & Brokers Membership$10K
Independent Community Bankers of America Trade group$10K
Northrop Grumman Corporation Corporate$10K

Biggest outside spenders

Freedom From Politics · $773K attacking
Retire Career Politicians · $365K attacking
American Mission · $230K supporting
Great Plains Voices PAC · $50K attacking

FEC record S4SD00049

Brian BengsIndependent / other

✗ Lost

Raised: $1.9M
Spent: $1.8M
From individuals: $1.8M
From PACs: $43K
From party: $0
Own money & loans: $0
Outside money for: $880K
Outside money against: $985K

Who paid: 2% of Bengs's money came from PACs

Super PAC $15K (75%)Other $5K (25%)

No Surrender Fund Super PAC$10K
Back the Bold Other$5K
Votevets Super PAC$5K

Biggest outside spenders

South Dakota Conservative PAC · $985K attacking
Retire Career Politicians · $755K supporting
Great Plains Voices PAC · $50K supporting
Bison PAC · $46K supporting
United Independents Campaign Fund · $16K supporting

FEC record S6SD01117

Questions people ask

How much money was spent on the 2026 South Dakota Senate race?: $8.9M was spent on the 2026 South Dakota Senate race: $5.7M raised by the campaigns, $1.7M of it from PACs, plus $3.3M from outside groups (FEC filings through Oct 14, 2026). Mike Rounds (Republican) won and was the top fundraiser.
Who raised the most money in the 2026 South Dakota Senate race?: Mike Rounds (Republican) raised $3.8M and had $230K in outside spending on their side.
Which outside groups spent the most on the 2026 South Dakota Senate race?: Retire Career Politicians ($1.1M), South Dakota Conservative PAC ($985K), Freedom From Politics ($773K).
Which PACs gave the most to candidates in the 2026 South Dakota Senate race?: NRSC gave $62K to Mike Rounds; Mortgage Bankers Association Political Action Committee (Morpac) gave $48K to Mike Rounds; Chevron Employees Political Action Committee - Chevron Corporation gave $15K to Mike Rounds.