South Carolina, Nevada, North Dakota primaries and Ohio special election 2024: Nancy Mace, Sam Brown win

Democrats nearly won a safely Republican congressional seat.

June 11 was another packed primary day, as voters in South Carolina, Maine, North Dakota and Nevada weighed in on who will make the ballot this fall. We had our eyes on a slew of Republican primaries on Tuesday, including several competitive contests for U.S. House seats, as well as contests to pick Nevada's GOP Senate nominee and effectively pick the next governor of North Dakota.

In South Carolina, Rep. Nancy Mace's Trumpian pivot didn't cost her, as she handily fended off an establishment-aligned primary challenger. Fellow incumbent Rep. William Timmons, who was looking vulnerable after an infidelity scandal, also came out ahead in a closer race against his right-wing challenger. In North Dakota's At-Large Congressional District, Julie Fedorchak became the first non-incumbent woman this cycle to win a GOP primary for a safely red seat. In Nevada, Republican voters chose Sam Brown as their candidate to challenge incumbent Democratic Sen. Jacky Rosen this fall.

Finally, a special election is set to give House Republicans one more seat of breathing room, as voters in Ohio's 6th District filled the seat vacated by Rep. Bill Johnson's departure in January — though not without some unexpected suspense.

As usual, 538 reporters and contributors broke down the election results as they came in with live updates, analysis and commentary. Read our full live blog below.


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Heading for a rematch in Nevada's 1st?

In Nevada's 1st District, 64 percent of the expected vote is counted already, and Robertson leads Larsen 49 percent to 38 percent for the right to take on Titus. As you might recall, Robertson was the GOP's nominee here in 2022 as well.

—Nathaniel Rakich, 538


Finally, votes in Nevada!

We finally have a bunch of votes in Nevada! It was our snarky comments that did it, I'm sure.

According to the AP, 57 percent of the expected vote is already reporting in the Republican primary for U.S. Senate. As expected, Brown is crushing Gunter 57 percent to 17 percent.

—Nathaniel Rakich, 538


Narrator: This cycle is not different

—Mary Radcliffe, 538


Which will come first ...

Results from Nevada or the A's actually moving to Vegas?

—Jacob Rubashkin, Inside Elections


So far, 2024 has been a good year for House incumbents

After tonight, we'll have seen downballot primaries in 26 states, and so far the only incumbent that has lost renomination is Jerry Carl, who due to redistricting had to run in an incumbent-on-incumbent battle against Barry Moore in Alabama's 1st district. With Mace's race now called in her favor and Timmons ahead by around 10 percentage points, it looks like tonight might continue the streak.

However, that's not too unusual. Based on my quick calculations, on average over the last 7 election cycles, just 8 incumbents who faced a primary challenger lost renomination, and in 4 of those 7 cycles, there were 5 or fewer incumbents that failed to secure their party's nomination.

But we may be on track to break the incumbent winning streak as early as next week, when Virginia representative Bob Good faces state senator John McGuire, a Trump endorsed challenger. Polls show that race up in the air, with two polls conducted since Trump's endorsement showing nearly opposite results. And the following week, Democrat Jamaal Bowman of New York's 16th faces a very tough challenge from Westchester County Executive George Latimer. So don't expect Jerry Carl to be the lone incumbent loser when all is said and done.

Mary Radcliffe, 538