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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Ohio’s 6th is ancestrally Democratic

As Kyle Kondik of Sabato’s Crystal Ball points out on X, "No district in the entire country moved further toward the Rs at the presidential level from 2008 to 2020 than OH-6." That could explain why Democrats overperformed by so much here — the district has some muscle memory of voting for Democrats. I'm reminded of the Pennsylvania 18th special election in 2018, which was shockingly won by Democrat Conor Lamb. That was a Trump+20 seat, but it was an ancestrally Democratic district — in fact, there were still more registered Democrats than registered Republicans in the district at the time.

—Nathaniel Rakich, 538


South Carolinians agree with Mace on abortion exceptions

Monica mentioned earlier that Mace's position on abortion may stand out among GOP candidates, but it actually puts her in line with much of her state's electorate. According to the May Winthrop University poll I mentioned earlier, 81 percent of South Carolinians support legal abortion if a pregnancy is a result of rape, while just 9 percent oppose it. Voters also supported legal abortion in the case that a "pregnancy threatens the woman's life or health" by a margin of 84 to 5. The pollsters didn't ask about incest, but I suspect the numbers would be similar.

Mary Radcliffe, 538


Rulli projected to win in Ohio’s 6th

With 65 percent of the expected vote counted in Ohio’s 6th, per the AP, Rulli has now taken the lead, 52 percent to 48 percent. And somewhat surprisingly, the AP has also projected the race for Rulli, no doubt because they expect the remaining votes — which were mostly cast on election day — to favor him.

However, the county-level results here are very unusual, with some of them exhibiting the kind of Democratic overperformance that, if replicated districtwide, would have led to a Kripchak win. For example, the AP estimates that virtually all the votes are counted in Washington County, and Rulli leads there by just 6 points. In 2020, Trump won Washington County by 41 points! And Kripchak actually won the 6th District portion of Tuscarawas County, which Trump carried by 33 points, by 12 points!

It's always possible that these county-level swings won't replicate districtwide — indeed, that's what the AP is predicting based on their projection. But regardless of the final outcome, it's clear that Kripchak did shockingly well for a Democrat in Ohio’s 6th.

—Nathaniel Rakich, 538


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


Trump seems likely to pad his primary endorsement record in tonight's races

As usual, tonight we'll be watching to see how candidates endorsed by Trump fare in their respective races. The former president loves to tout his "very unblemished" track record for endorsing candidates who win, though when you take a closer look at his numbers, it's not always that impressive. Still, Trump's seal of approval can often be enough to give an edge in a tight primary race, so we'll be watching the 11 races tonight where he has endorsed a candidate:

Trump has already won in two of today's races, since he endorsed incumbents North Dakota Sen. Kevin Cramer and South Carolina Rep. Russell Fry, each of whom are running unopposed. He'll also likely have luck with the other two incumbents he endorsed, Reps. Nancy Mace and William Timmons in South Carolina, though they're facing challengers. As for non-incumbents, Trump made a last-minute endorsement of retired U.S. Army Capt. Sam Brown, who's enjoyed strong party backing and is heavily favored to win. His pick in Maine's 2nd District, former NASCAR driver state Rep. Austin Theriault, also seems to be favored to win, as does former North Las Vegas Mayor John Lee in Nevada's 4th District.

But Trump has had a few disappointments in recent weeks. Mendham Mayor Christine Serrano Glassner, whom Trump endorsed for the GOP Senate primary in New Jersey, lost by 7 percentage points last week, and his endorsee for Texas's 21st State House District narrowly lost his primary in a May 28 runoff. I'll be keeping an eye on these races as results come in tonight, and will keep you updated on how blemished or unblemished Trump's record remains.

Kaleigh Rogers, 538