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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Vermont's town meetings

While we're on the topic of Vermont politics (and books), I can't recommend Frank Bryan's book Real Democracy highly enough. Over decades, Bryan sent college students to attend town meetings throughout Vermont, where local residents make key decisions in a form of direct democracy that's uncommon elsewhere. The product is a highly readable book with plenty of local color about direct democracy in Vermont's towns.

Dan Hopkins, 538 contributor


In Vermont, the GOP is 'the star that set'

Ha, Jacob, to that point: If anyone is interested in some Vermont political history, here are a couple recs from someone who recently moved to the state (me). There's "The Star That Set: The Vermont Republican Party, 1854-1974," which lays out the rise and dominance of the GOP in Vermont, then its decline in the latter half of the 20th century as the state became two-party competitive. And "Philip Hoff: How Red Turned Blue in the Green Mountain State" investigates the changes in Vermont during the 1960s that surrounded Democratic Gov. Philip Hoff, the first Democrat to win Vermont's governorship after the Civil War. (This ends the Vermont Book Club portion of the evening.)

—Geoffrey Skelley, 538


So who is Mark Robinson?

ABC News projects North Carolina Lt. Gov. Mark Robinson to be the Republican nominee for Governor in the state. This was the outcome that was widely expected, as Robinson had been leading the race. It's expected that he'll square off against state Attorney General Josh Stein, who is leading the Democratic primary, and it looks like it'll be a competitive race. If you're not familiar with Robinson, he first gained attention in 2018 when a video of him speaking at a Greensboro City Council meeting in support of gun rights went viral. In 2020, he was elected as Lieutenant Governor, the state's first Black Lieutenant Governor, and he has been a controversial figure.

A devout Christian, Robinson stays true to his roots by tending toward impassioned, sermon-style speeches. However, those speeches have often veered into inflammatory and bigoted language, particularly towards the LGBTQ+ community. As recently as February, he said that transgender women should be arrested for using the bathroom corresponding to their gender identity and suggested they "go outside." He has said straight couples are "superior" to gay couples, that "God made him issues, and that anyone in the GOP who doesn't support him will face God's "vengeance.". Suffice to say, he's a controversial figure, not unlike the party's leader, and will represent a significant shift in North Carolina state politics if he's elected to the governor's mansion this November.

Kaleigh Rogers, 538


Polling primaries is hard!

Yeah, Mary, I suspected we might see a sizable polling error or two! Polling presidential primaries is really hard — this century, presidential primary polls have missed the mark by an average of 9 points. And with just one poll in Vermont over the past month, we were putting a lot of eggs in one polling basket.

—Nathaniel Rakich, 538


GOP primaries for the Texas state House could be a bloodbath

Sitting governors and attorneys general don't usually openly try to defeat incumbents of their own party, but Texas Gov. Greg Abbott and Attorney General Ken Paxton are just built different, I guess. Today's Texas primaries are the culmination of two separate intraparty power struggles from the past year, in which Abbott and Paxton are actively trying to defeat Republicans who have defied them in the state legislature.

In May 2023, the Texas state House impeached Paxton on charges of bribery and abuse of office. He was later acquitted by the state Senate, but he has embarked on a revenge tour against those who supported his impeachment by endorsing primary challengers to 35 incumbent Republicans.

Meanwhile, Abbott suffered a massive political defeat last year when a group of mostly rural Republican legislators blocked his top priority, a school voucher program. In what the Houston Chronicle has called a "legacy-defining" campaign, Abbott has spent more than $4 million trying to oust 10 anti-voucher Republicans running for reelection.

Even Trump has gotten in on the act: He has endorsed at least eight primary challengers to sitting representatives, all of whom either voted against vouchers or voted to impeach Paxton (who is a close Trump ally).

If Paxton, Abbott and Trump are successful, the Republican caucus in the Texas state House will look very different — and further right — next year. Throughout the night, I'll be watching for how many incumbents they successfully topple.

—Nathaniel Rakich, 538