Super Tuesday primaries 2024: Trump and Biden dominate, Haley drops out

538 tracked how Trump and Haley did, plus key U.S. House and Senate races.

March 5 was Super Tuesday — the biggest election day of the year until the one in November! With former President Donald Trump projected to win 14 of the day's 15 GOP presidential nominating contests, former U.N. Ambassador Nikki Haley announced Wednesday morning that she is suspending her campaign.

It was also the first downballot primary day of 2024, with important contests for Senate, House and governor in states like Alabama, California, North Carolina and Texas.

538 reporters, analysts 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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Downballot, Trump’s endorsees are winning in Texas

As Nathaniel and I discussed earlier, dynamics in the Texas state legislative elections have been particularly contentious this year, with the governor and Trump endorsing at least eight challengers to Republican incumbents in the state House. As of now, seven of those challengers are currently leading their primaries, though a few look headed to a runoff. One challenger, Barry Wernick in the 108th, is trailing by just 2 points.

—Mary Radcliffe, 538


It’s ovah in Minnesota

ABC News projects that Biden will win the Minnesota Democratic primary, and Trump will win the Republican primary. Biden’s win is expected, but also salt in the wound for his highest-profile competitor, Minnesota Rep. Dean Phillips, who gave up a safe seat in Congress and the potential for a strong statewide run in a few years to launch his no-shot challenge against Biden.

Jacob Rubashkin, Inside Elections


Trump projected to win Massachusetts

ABC News projects that Trump will win the Massachusetts primary, his 10th win of the evening. With 15 percent of the expected vote reporting, Trump is leading Haley in the Bay State 59 percent to 37 percent. Yet again, this is another state where Haley was hoping to do well: Massachusetts has a lot of college graduates, and it allows independents and Democrats to vote in the Republican primary. But with Trump’s win, the Haley campaign turns its lonely eyes to Vermont.

—Nathaniel Rakich, 538


Trump opens up lead in Vermont

With 56 percent of the expected vote now reporting, Trump has opened up a bit of a lead against Haley in Vermont. He has half the vote, and Haley is just behind him with 47 percent. Still, that's closer than the two polls, had us expecting. There's still room for Haley to pull out a win, which she would need: all of the state's 17 primary delegates go to the winner. That is, unless they both end up with under 50 percent of the vote, in which case they split the delegates proportionally.

—Monica Potts, 538


6 downballot races to watch in North Carolina

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