Given that Haley almost certainly wins Vermont (though whether she clears 50% and takes all the delegates is yet to be seen), she may be less likely to drop out of the race. But most Republican primary voters would rather see her move on: according to a February poll by Emerson College Polling, 56 percent of likely Republican primary voters nationwide say that Haley should drop out of the race for the Republican nomination. Thirty-one percent say she should stay in, and 13 percent are not sure.

—Mary Radcliffe, 538

In Arkansas, Justice Courtney Hudson won a race for position 2 on the state Supreme Court. She currently holds position 3, but ran for the vacant position 2 because of complicated judicial retirement rules. Her win will leave her current seat vacant, which will give Sanders the opportunity to appoint a replacement for the rest of the term. There is also a 4-way race for the chief justice spot, but if no candidate wins a majority tonight, the top two will head on to a runoff in November.

—Monica Potts, 538

With nearly all expected votes counted in the Republican primary for North Carolina’s 10th District, it’s a tight race between moderate Pat Harrigan, who has 41 percent of the vote, and conservative Grey Mills, who has 39 percent. Whoever wins will be heavily favored to win the general election in this dark-red seat, which is open because Rep. Patrick McHenry is retiring.

—Nathaniel Rakich, 538

In the Republican primary, attorney Caroleene Dobson is trailing businessman Dick Brewbaker in Alabama’s 2nd district, with 40 percent of the expected vote reporting. This race is an open primary due to redistricting, where eight Republicans are running for the nomination. Dobson had received an endorsement from VIEWPAC, an organization that formed in 1997 to elect more Republican women to office.

—Meredith Conroy, 538 contributor

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