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


Trump claimed the GOP nomination pretty fast historically

Back in late January, we wondered if the 2024 Republican presidential primary might be the shortest in modern history. But because Haley continued to contest the race until Super Tuesday, the competitive period of this year's GOP contest ended up falling short of setting any records. Still, it was undoubtedly on the quick side, historically.

The 2024 Republican race lasted 52 days from Iowa through today, during which time all states and the District of Columbia held 25 contests. The March 6 effective end date puts it just behind the record earliest end of a nomination season (March 3 in the 2004 Democratic contest) and the number of state-level elections (19 in the 2000 Democratic race). Nonetheless, going back to the 1976 election cycle, this year's Republican campaign was much shorter than the median number of competitive days (85 days), state-level contests (39) and end date (April 9).

To be clear, measuring the effective end date of a nomination race's competitive period is not always cut and dry, although it was this time around. We based our approach on political scientist Caitlin Jewitt's work on presidential primary competition, which classified a candidate as their party's presumptive nominee either when all viable opponents have dropped out or when they clinch a delegate majority from the results of primaries and caucuses. In Trump's case, Haley was his last viable opponent.

—Geoffrey Skelley, 538