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.

Last Updated: March 5, 2024, 4:58 PM EST

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.

Latest headlines:

Here's how the news is developing.
Nathaniel Rakich Image
Mar 05, 2024, 9:34 PM EST

North Carolina’s state House speaker is probably going to Congress

ABC News can project that Tim Moore has won the GOP primary for North Carolina’s 14th District. Moore is the speaker of the state House and played a role in redrawing North Carolina’s congressional map this cycle to give Republicans three new safe seats — including one that included Moore’s home base. Unsurprisingly, he jumped into the race and faced only nominal opposition in the primary, and he should easily win the general election as well in this Trump +16 district.

—Nathaniel Rakich, 538

Kaleigh Rogers Image
Mar 05, 2024, 9:31 PM EST

Some updates from North Carolina

Some of those races to watch in North Carolina are still cooking, and I have a hunch we may end up in runoff territory for a couple. In the 1st District's GOP primary, Laurie Buckhout is edging ahead of Sandy Smith by 4 percentage points, with 34 percent of the votes in.

In the 6th District Republican primary, it's an incredibly close three-way tie right now between Trump-endorsed political newbie Addison McDowell, former Green Beret Christian Castelli, and former Rep. Mark Walker, who represented the district from 2015-2021 before making an unsuccessful bid for the Senate. Bo Hines, a former wide receiver for North Carolina State University who ran unsuccessfully in 2022, is trailing the other three. This race will determine the winner in November — there are no Democrats bothering to run in the 6th, since it was redrawn to be much redder.

And in the deep-red 8th District outside Charlotte, redemption-seeking former nominee Mark Harris, whose 2018 congressional win was thrown out due to allegations of ballot fraud, is just barely leading Allan Baucom, a farmer and former chairman of the Union County Board of Commissioners. State Rep. John Bradford, who has poured $1.3 million of his own money into his campaign, is trailing with 81 percent of votes in.

Remember that in North Carolina, if no candidate gets 30 percent or more of the vote today, races will go to a two-candidate runoff in May.

—Kaleigh Rogers, 538

Kaleigh Rogers Image
Mar 05, 2024, 9:29 PM EST

Speaking of Trump endorsements …

The former president's scorecard for endorsees is looking pretty good at the moment. Out of six candidates whom Trump endorsed, three have won their primaries (Mark Robinson for North Carolina Governor, Mayra Flores for Texas's 34th District and Tim Moore in North Carolina's 14th District) and two are leading (McDowell, who I just mentioned, and Brandon Gill in Texas's 26th District). We'll have to wait for the polls to close in California to see if Trump is heading for a perfect score.

Kaleigh Rogers, 538

Mar 05, 2024, 9:28 PM EST

Uncommitted votes look pretty similar to Obama’s 2012 reelection bid

Some Democrats have been pushing for voters to choose uncommitted on ballots where it appears, primarily to protest Biden's stance on the conflict in Gaza. However, as of now, it doesn't look like there's much difference between voters choosing uncommitted now versus in Obama's 2012 reelection campaign.

In Massachusetts so far tonight, 10 percent of voters have selected "no preference". That's the same as the percentage of Massachusetts Democratic primary voters that voted no preference in 2012. In North Carolina, Biden is the only name on the ballot, and 11 percent have chosen no preference. But in 2012, when Obama was the only name on the ballot in the state, there were 21 percent that voted no preference.

Other states have even lower uncommitted vote numbers. In Colorado, uncommitted has 7 percent of the vote, and it has 5 percent in Alabama and just 3 percent in Tennessee.

—Mary Radcliffe, 538