Good evening. I'm Gatti Schwartz in for Jose. And tonight we have breaking news in South Carolina, where NBC news can project former President Donald Trump will win the state's Republican primary. He's projected to beat Nikki Haley, his only opponent left in this race. And Trump is continuing his unbeaten 2024 streak as he prepares for a potential rematch with President Biden, blasting him in a speech earlier today. But Trump still needs to win the Republican nomination, and the only person standing between him and Biden is Nikki Haley. Despite tonight's major setback to her campaign and a stinging loss in her home state, she's still vowing to stay in the race, but at this point, it's unclear what her path forward could look like. Our Garret Hake is on the campaign trail tonight, and he starts us off from South Carolina. You're fired, Biden. Get the hell out of here.

A confident Donald Trump campaigning at a conservative conference outside Washington tonight, hundreds of miles from South Carolina, where is now projected to win his fourth straight primary victory.

Big election going on today. You probably have read a little bit about it.

The former President largely looking past his last Republican opponent, Nikki Haley. Instead, painting a dark picture of a Biden presidency he hopes to end in November.

Joe Biden. He's the crooketest, most incompetent President in the history of our country.

Thanks so much.

Good to see you all. Well, on the ground in South Carolina, Haley the state's former governor, casting a ballot for herself and arguing Mr. Trump would be destined to lose a 2020 rematch with President Biden in the fall.

How many more times do Republicans have to lose before they realize that maybe he's the one that's the problem?

Overnight, the former President creating new controversy with these remarks at a Black conservative gala in Columbia.

The mug shot, we've all seen the mug shot. You know who embraced it more than anybody else? The Black population. It's That's incredible.

It's disgusting. But that's what happens when he goes off the teleprompter. That's the chaos that comes with Donald Trump. That's the offensiveness that's going to happen every day between now and the general election.

But at polling places across the Palmetto State, Republicans stood by Mr. Trump.

You look at everything he said he was going to do, and he did it. He's for the American people, not for foreigners. I think he's the best man. Thank you so much.

While Haley's support here cuts across party lines. But even the backing of lifelong Democrats That's like Kelly Poindexter, not enough. Why was this important to come out and do it this way today?

It's important to me to keep Trump out of office again.

And Garrett Hake joins us from Columbia, South Carolina, at a Trump election night party Hey, Garrett.

Gatti, this is now a victory party here for Donald Trump, and expect to hear him claim victory, not just in South Carolina, but in this Republican primary. He and his campaign are eager to pivot all of their attention to Joe and this fall's general election. Gatti.

Derrick Hank, thank you. For more, let's bring in NBC's Meet the Press moderator, Kristen Welker. Kristen, at this point, does Haley still have a path forward?

Well, Gatti, Nikki Haley's path to the nomination is uphill at best, regardless of what happens in South Carolina. She's looking to Michigan, which votes on Tuesday. Now, that state has an open primary, meaning voters of any party affiliation can vote for the candidate of their choosing. That could help Haley, who posed well with Democrats and independents. Haley is also eyeing Super Tuesday states that have open primaries, including Virginia, Minnesota, and Massachusetts. But catching Trump will be nearly impossible given his already huge delegate lead. Meanwhile, Democrats are watching this all closely. I interviewed California's governor, Gavin Newsom, earlier today and asked him if Democrats want Haley to get out of the race so the general election can officially begin.

I don't know why Democrats would want her out of the race. She's one of our better surrogates. I mean, she's defining the opposition to Trump incredibly effectively. I mean, she's making points I'm applauding every single day about his temperament, his capacity, his unraveling in real time.

Now, not surprisingly, Trump supporters have been calling on Haley to get out of the race. Her timing will likely depend on whether donors continue to stand by her. But bottom line, you can't sugarcoat it. A loss in Haley's home state would be a major setback for her. Gatti.

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