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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Davis probably would have preferred Smith

Smith is an outspoken, MAGA-style firebrand who hasn’t managed to pull out a win in the area and would have been a more appealing (read: weaker) opponent for the freshman congressman in this swingy district. As I mentioned earlier, the 1st District has long been a Democratic stronghold — it hasn’t elected a Republican in over 140 years — but after redistricting, it was redrawn to become a tossup district, and is set to be the only real competitive Congressional race in North Carolina this fall.

Kaleigh Rogers, 538


AP projects a winner in North Carolina's 1st Congressional District

In North Carolina's 1st congressional district, Buckhout is projected to win the Republican primary, according to The New York Times. We wrote about this earlier, but her win comes on the strength of national Republican Party efforts to make her the nominee over two-time candidate in the district, Sandy Smith, a candidate with a more Trumpy profile. Buckhout will take on Democratic Rep. Don Davis in November.

—Monica Potts, 538


Where's Trump doing especially well in North Carolina?

With more than 90 percent of North Carolina's expected vote in, we can now say more about the patterns in that state. First, Trump is romping statewide, with 75 percent to Haley's 23 percent. But where is Trump doing especially well? In counties with few people with college degrees, sure. But also in counties with lower population density and more Black voters. That said, it doesn't mean Trump is doing well with Black GOP voters — preliminary data from the North Carolina exit poll suggest that in fact non-White Republican primary voters were a bit less supportive of Trump than white Republican primary voters. Instead, Trump is doing especially well in the counties with more Black residents (regardless of whether they're voting tonight or not).

—Dan Hopkins, 538 contributor


The establishment candidate may endure in Kay Granger's district

With 81-year-old Rep. Kay Granger set to retire, the primary race to replace her in Texas's 12th District looks like it may go to the more establishment GOP candidate: state Rep. Craig Goldman, who is currently leading with 46 percent and 78 percent of expected votes in. He'll need to get 50 percent of the vote (plus one vote) to avoid a runoff with local businessman John O'Shea, a more Trumpian candidate who currently has 25 percent of the vote.

Kaleigh Rogers, 538


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