Overnight last night, ABC News projected that firearms manufacturer Pat Harrigan will be the GOP nominee in North Carolina's 10th District. He defeated more conservative Republican Grey Mills 41 percent to 39 percent. The 10th District is a solidly red seat currently represented by retiring Rep. Patrick McHenry, and Harrigan should have no trouble winning it in the fall.

—Nathaniel Rakich, 538

Last night, the "uncommitted" campaign made headway in a few more states. After a protest vote for Biden's response to Israel's war against Gaza helped net over 100,000 uncommitted votes in last week's Michigan Democratic primary, supporters of the Listen to Michigan campaign expanded their efforts to other states with "uncommitted" or similar language as an option on primary ballots.

With 89 percent of the expected vote reporting, 19 percent of Democratic primary voters in Minnesota voted uncommitted, eclipsing the 13 percent reached last week in Michigan. That means "uncommitted" will send at least 8 (and up to 11) delegates from Minnesota to the Democratic National Convention in August, per the latest ABC News projections.

"No preference" also garnered 13 percent of ballots cast in North Carolina and 9 percent in Massachusetts, while 8 percent of primary voters in Colorado chose "noncommitted." However, those aren't enough to meet their respective states' thresholds to send a delegate to the national convention. (That's 15 percent in all three of those states.)

—Irena Li, 538

While Haley called on Trump to earn Republicans' votes, Mitch McConnell suggested that he already has. "It is abundantly clear that former President Trump has earned the requisite support of Republican voters to be our nominee for President of the United States," McConnell said in a statement. The rest was pretty standard endorsement fare, going on to tout Trump's accomplishments on tax reform and judicial appointments, and criticizing Biden.

It's an undramatic end to the minor drama over whether the soon-departing majority leader would endorse Trump, with whom he's undoubtedly had a rocky relationship. In the end, McConnell waited until just after Trump's final major opponent dropped out to fall in line. With one of the last major (potential) party holdouts in his corner, the general election train is in full swing for Trump.

—Tia Yang, 538

According to the latest numbers from our colleagues at ABC News, Trump has 1,051 of the 1,215 delegates he needs to mathematically clinch the Republican nomination for president. Haley's withdrawal from the race puts him on track to reach that magic number next Tuesday, March 12. A total of 199 delegates will be allocated between now and then, and presumably Trump will win all or almost all of them.

—Nathaniel Rakich, 538

There are a handful of particularly hot downballot contests in North Carolina worth paying attention to tonight. You can read about them in more detail in my preview from last week, but here's a quick recap to get you up to speed.

Neither the Democratic nor Republican primary for governor is competitive, but they're worth paying attention to because this race will be competitive come November. If Republican front-runner Lt. Gov. Mark Robinson — a deeply conservative Christian and controversial figure — wins the nomination and defeats Attorney General Josh Stein, who is leading the Democratic race, it would give Republicans a governing trifecta in the state for the first time in eight years.

Thanks to redistricting, North Carolina's 1st Congressional District is expected to be the state's only competitive congressional race this fall. Incumbent Democratic Rep. Don Davis will be squaring off against one of two Republicans: Jan. 6-attending, MAGA firebrand Sandy Smith and retired U.S. Army Colonel Laurie Buckhout, a wealthy businesswoman who has spent more than $1 million of her own money boosting her campaign.

Then there are four safely Republican open seats elsewhere in the state, where the GOP primary will effectively decide the next representative. In the 6th District, the six-candidate field includes Bo Hines, a former wide receiver for North Carolina State University who ran unsuccessfully in 2022. In the 8th District outside Charlotte, the two GOP front runners are state Rep. John Bradford, who has poured $1.3 million of his own money into his campaign, and Baptist minister Mark Harris, whose 2018 congressional win was thrown out due to allegations of ballot fraud.

In the 10th District, state Rep. Grey Mills is hoping to upset front-runner Pat Harrigan, a gun manufacturer who was the Republican nominee in the 14th District in 2022. And in the 13th District, there are no fewer than 14 candidates running — this one looks like a jump ball and may even go to a May 14 runoff if none of the candidates can clear 30 percent of the vote.

I'll have more on these races and more from the Tar Heel State soon! Polls close at 7:30 p.m. Eastern.

—Kaleigh Rogers, 538