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.
Meredith Conroy Image
Mar 05, 2024, 11:18 PM EST

VIEWPAC-endorsed candidates in open primaries are having a tough night

In 2022, our analysis showed that just 48 percent of Republican women in open primaries endorsed by VIEWPAC (a PAC dedicated to electing more women) won. As we observed at the time, VIEWPAC was willing to endorse candidates running against Trump endorsees, which was a bold, but losing, strategy in 2022. Tonight, VIEWPAC candidates in open primaries are not having a lot of success. As I already mentioned, in Alabama's 2nd District, Caroleene Dobson trails Dick Brewbaker. And in Texas's 26th District, another endorsee, Luisa del Rosa, a small business owner, is in a distant fourth place behind a Trump endorsee, Brandon Gill, with 88 percent of the expected votes in. (Gill has also been endorsed by Club for Growth.) But in Texas's 34th, the race has been called for their endorsee, Maya Flores ... who is also endorsed by Trump.

Meredith Conroy, 538 contributor

Dan Hopkins Image
Mar 05, 2024, 11:11 PM EST

Vermont on the razor's edge

Nikki Haley's delegate count from Vermont hinges on whether she clears the 50 percent threshold. And right now, she's incredibly close to it. With 68,420 votes cast, Haley has 34,215, which is 4 more votes than the 50 percent plus 1 she needs to sweep the state's delegates. When I simulate 100,000 primaries with that number of total votes and an even 50-50 split, I get a result that's within that tight margin only 3 percent of the time.

—Dan Hopkins, 538 contributor

Geoffrey Skelley Image
Mar 05, 2024, 11:10 PM EST

Trump projected to win California

Polls have closed in California, and ABC News projects that Trump will win the Golden State. He should easily clear 50 percent and claim all of the state's 169 delegates.

—Geoffrey Skelley, 538

Monica Potts Image
Mar 05, 2024, 11:08 PM EST

ABC News projects Haley will win Vermont

And now ABC also projects that Haley will win Vermont. The race remains super close, however, and it’s not yet clear how delegates will be awarded.

—Monica Potts, 538

South Carolina governor Nikki Haley is projected to win the Vermont Republican primary in an upset over former President Donald Trump.
3:25

Nikki Haley projected to win Vermont Republican primary

South Carolina governor Nikki Haley is projected to win the Vermont Republican primary in an upset over former President Donald Trump.
ABCNews.com