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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Trump projected to win Colorado

ABC News can now project that Trump will win the Colorado primary. With almost half the expected vote reporting already, Trump has 60 percent to Haley's 36 percent. It's Trump's eighth win of the evening already, and this one is particularly rough for Haley, as this was one of the few states where she had the best shot at an upset win.

—Nathaniel Rakich, 538


Will Minnesota be nice for Trump?

Polls have now closed in Minnesota, which was a sleeper battleground in the 2016 general election, but tends to support Democrats. There are a greater-than-average number of college graduates in the state, which should be good for Haley, but there's also a sizable white working class population, which, if you're reading this live blog, you probably already know, is good news for Trump.

—Jacob Rubashkin, Inside Elections


Trump projected to win Alabama

In one of the least surprising developments of the night, ABC News projects that Trump will win Alabama. Only 5 percent of the expected vote has reported there, but Trump leads Haley by a punishing 69-point margin, 83 percent to 14 percent. We expected Alabama to be one of Trump's strongest states, and that looks to be the case.

—Geoffrey Skelley, 538


Our first glimpse at Colorado

Going into tonight, I thought that Colorado could be a dark horse state for Haley. There wasn't a single poll of the race there, and the state's highly educated demographics seemed like a good fit for her.

Well, so far, it ain't happening. With 28 percent of the expected vote reporting, Trump is taking 57 percent of the vote there, while Haley has just 40 percent.

—Nathaniel Rakich, 538


Several incumbents ousted in the Texas state House

As we explained yesterday, Texas Gov. Greg Abbott, Texas Attorney General Ken Paxton and Trump all set out to defeat several incumbent Republicans in the Texas state House yesterday (albeit for different reasons). The Associated Press has now projected winners in most of those races, and here's how they turned out: In total, at least eight Republican incumbents lost their primaries after being targeted by one of those three men. Another seven, including Speaker Dade Phelan, were forced into runoffs.

Abbott's muscle looks like it was the most effective: Five of the 10 incumbents he targeted (over their opposition to his school-voucher plan) lost, and another three went to runoffs. Trump also did OK: Two of the eight incumbents he targeted lost, and three more went to runoffs. Paxton didn't have as high of a success rate: Only seven of the 35 incumbents he targeted lost, although seven more were forced into runoffs. That's maybe not too surprising, though, since unlike Abbott, Paxton didn't put a ton of money where his mouth was.

—Nathaniel Rakich, 538