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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Tied again in Vermont

With 70 percent of the expected vote reporting in Vermont, Trump and Haley are tied again at 48 percent each. If Haley wins there, it might compel her to stay in past tonight, but the overall delegate math is still against her.

—Monica Potts, 538


Book recommendation about U.S. territories

Want to know more about territories like American Samoa, which participate in the nomination process but aren't states — and thus don't have Electoral College votes or representation in Congress? I recommend this fascinating book, "The Not-Quite-States of America" by journalist Doug Mack. It explores the contradictions in the status of these areas and how it affects the people who live there.

—Julia Azari, 538 contributor


Biden loses American Samoa to no-name candidate

Well, well, well. It turns out neither Trump nor Biden will sweep every presidential nominating contest this year. ABC News can confirm that Biden has lost the Democratic caucuses in the territory of American Samoa to Jason Palmer.

Who is Jason Palmer, you ask? One of the many no-name candidates who runs for president every year. According to DDHQ’s Derek Willis, Palmer actually visited American Samoa to campaign, which explains how he was able to accomplish something that neither Marianne Williamson nor Dean Phillips has been able to do this year.

P.S. What’s up with American Samoa and Democratic caucuses? You may recall that, back in 2020, it was the only state or territory to vote for Michael Bloomberg.

—Nathaniel Rakich, 538


Democratic precincts are voting 'No Preference' in North Carolina

—Dan Hopkins, 538 contributor


Haley likely to win Vermont, but the critical margin is still up in the air

The New York Times and the Associated Press have projected that Haley will win the Republican primary in Vermont, making it the second win for her after Washington, D.C. (ABC News has not yet made a projection in this race.)

While Trump remains ahead on the delegate count, the win could give some juice to her campaign. She's vowed to stay in because she says that Trump and Biden are both too old and out of touch, and she has been capturing a sizable minority of primary voters who are unhappy with the former president in many states across the country. Still, she'll need to get a majority of the final vote to take all of the delegates, and that remains up in the air. With 92 percent of the expected vote in, she has 49.7 percent to Trump's 46 percent. If neither candidate reaches 50.1 percent, they'll split the state's delegates.

—Monica Potts, 538