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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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


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


No polls for Palmer

Unfortunately, we’ve seen no polling at all this cycle that includes Palmer. So there’s no way to tell how he stacks up against Trump.

—Mary Radcliffe, 538


Is he even real?

Jason Palmer's (currently down) campaign website features a page called PalmerAI, where a deepfaked video of today's Democratic winner in American Samoa can answer any and all questions you might have about him or his campaign. Talk about uncanny valley.

—Irena Li, 538


Downballot races include several judicial shuffles

Voters are choosing more than their parties' presidential nominees tonight. In five Super Tuesday states, they're also deciding on candidates for statewide and local offices. Several consequential judicial elections are being held tonight, for positions on state supreme courts in Alabama, Arkansas and Texas, and on the Criminal Court of Appeals in Texas.

In Arkansas, nonpartisan general elections are being held to fill two vacancies on the Supreme Court, creating a game of musical chairs among the sitting justices that could potentially accelerate the already-conservative court's rightward shift. Chief Justice Dan Kemp is stepping down, and three of the four candidates running to replace him are already sitting on the court, while another sitting justice is angling to move to a different open seat on the court. The shuffle could leave two vacancies that would allow conservative Gov. Sarah Huckabee Sanders to name replacements to finish their terms.

Alabama's Supreme Court Chief Justice Tom Parker, who recently made waves nationally with a ruling that frozen embryos used for IVF are children, is also retiring because of the state's mandatory retirement age. Two candidates are running for the Republican nomination to replace him: sitting Associate Justice Sarah Stewart (who had to give up her seat to run for the top slot) and former state Senator Bryan Taylor. While Stewart joined the 8-1 majority opinion in the IVF case and both candidates have defended the decision, Taylor has claimed that Stewart is the "most liberal" justice on the all-Republican court, and received a huge influx of outside spending from conservative anti-abortion group Fair Courts America. Whoever wins will likely face (and defeat) Democrat Greg Griffin>) in the general election.

In Texas, Supreme Court Justice John Devine is facing a primary challenger who has questioned his ethics, but a bigger political feud is playing out in other races. Allies of Republican Attorney General Ken Paxton are funding primary challengers to three Criminal Court of Appeals judges who ruled against him in a voter fraud decision, limiting his power to prosecute those cases. And as Nathaniel noted earlier, Paxton, who had been accused of abusing power to protect a political donor, has also endorsed primary challengers against 34 of the 60 Republican legislators who voted to impeach him last year.

—Monica Potts, 538