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, 10:35 PM EST

Tight race in North Carolina’s 10th District

With nearly all expected votes counted in the Republican primary for North Carolina’s 10th District, it’s a tight race between moderate Pat Harrigan, who has 41 percent of the vote, and conservative Grey Mills, who has 39 percent. Whoever wins will be heavily favored to win the general election in this dark-red seat, which is open because Rep. Patrick McHenry is retiring.

—Nathaniel Rakich, 538

Meredith Conroy Image
Mar 05, 2024, 10:32 PM EST

Will the VIEWPAC-endorsed candidate win in Alabama's 2nd District?

In the Republican primary, attorney Caroleene Dobson is trailing businessman Dick Brewbaker in Alabama’s 2nd district, with 40 percent of the expected vote reporting. This race is an open primary due to redistricting, where eight Republicans are running for the nomination. Dobson had received an endorsement from VIEWPAC, an organization that formed in 1997 to elect more Republican women to office.

Meredith Conroy, 538 contributor

Kaleigh Rogers Image
Mar 05, 2024, 10:30 PM EST

Allred wins the Democratic Senate nomination in Texas

Back to regularly scheduled programming ... Former Tennessee Titans linebacker and current Congressman Colin Allred is projected by ABC News to win the Democratic primary for Senate in Texas.

Allred was the favorite to win the race tonight, but the bigger challenge will be trying to unseat former Canadian and current Senator Ted Cruz this fall. As Dan noted when Cruz locked down his primary earlier tonight, Democrats are hoping that they can finish what Beto O’Rourke started in 2018, when O'Rourke came within spitting distance of flipping Cruz’s Senate seat. If Democrats' are going to flip any Senate seats, this is likely their best shot, and is an important one if they hope to maintain their narrow majority in the upper chamber. So expect to see a lot of eyes and cash on this race in the months to come.

Kaleigh Rogers, 538

Dan Hopkins Image
Mar 05, 2024, 10:24 PM EST

Rubio plus Kasich shows the way for Haley in Vermont

As The Washington Post's Lenny Bronner has pointed out, Haley tends to do better in the places where mainstream or moderate Republicans Rubio and Kasich did better in 2016. In Vermont, Trump won the state in 2016, but by just over two percentage points over Kasich. And together, Rubio and Kasich won 49.7 percent of the vote in 2016, meaning that Haley needs to just about equal their joint performance to win the state. So far, she's roughly doing that. Of the 120 towns with nearly all the expected vote in, Haley's share tops Rubio's plus Kasich's in 65 towns while being under it in another 55.

—Dan Hopkins, 538 contributor