South Dakota is the only state holding elections today, with voters returning to the polls for a runoff following the state's statewide primaries. The runoff determines the Republican nominee for the state's Senate seat and its at-large House district, both of which lean heavily Republican in the fall.

South Dakota: Rounds' War Chest Dwarfs the Field

The runoff for South Dakota's Senate race pits Republican Mike Rounds against a general-election field that includes independent Brian Bengs and Democrat Julian Beaudion, though today's contest centers on settling the nominee picture. Rounds has raised just over $3.17 million and holds $2.74 million in cash on hand, a financial position that dwarfs his rivals. Bengs has raised about $782,000 with roughly $51,000 remaining, while Beaudion has brought in $228,295 and has just over $3,000 left in his account.

No public polling has been reported for the race. Inside Elections and Cook Political Report both rate the seat Solid R, and Sabato's Crystal Ball rates it Safe R, ratings that reflect the state's broader partisan lean rather than any specific survey data. With no horse-race numbers to weigh, tonight's turnout and margin will be the only available signal of the electorate's mood heading into the fall.

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South Dakota: A Three-Way Money Race in the House Runoff

The state's at-large House race features a runoff among Republicans, with Representative Dusty Johnson, Marty Jackley, and Casey Crabtree all in contention. Johnson leads in total fundraising at $1.63 million but reports zero cash on hand, a depleted position heading into the vote. Jackley has raised $1.44 million and retains $1.06 million in his account, giving him considerably more spending capacity than Johnson despite the smaller haul. Crabtree trails both, with $254,950 raised and just $18,722 on hand.

On the Democratic side, Nicole Gronli has raised $261,764 with nearly $111,000 remaining, and Billy Mawhiney has raised $31,138 with no cash on hand reported. No ratings or polling were provided for the House contest, leaving the fundraising disparities as the clearest data point ahead of results. Watch tonight whether Jackley's cash advantage translates into runoff votes despite Johnson's larger overall fundraising total, and whether the gap between the two leading Republicans narrows or widens the case for one becoming the fall favorite.

Also on the ballot today: no other states have scheduled elections, leaving South Dakota as the sole state voting, with its runoff covering both the Senate seat and the at-large House district.

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Real-time vote counts updated every 5 minutes after polls close. Polls close at 7:00 PM CT.

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