BISMARCK, N.D. (AP) — Donald Trump won the North Dakota Republican presidential caucuses on Monday, adding to his string of victories heading into Super Tuesday.

The former president finished first in voting conducted at 12 caucus sites, ahead of former U.N. Ambassador Nikki Haley. The result puts Trump back on the winning track, which was briefly interrupted on Sunday when Haley notched her first victory of the campaign in the District of Columbia’s primary.

The White House hopefuls now turn their attention to Super Tuesday, when results will pour in from 16 states and one territory in contests that amount to the single biggest delegate haul of any day in the presidential primary. Trump and President Joe Biden, a Democrat, are dominating their races and are on track to winning their nominations later this month.

Under North Dakota’s rules, candidates are eligible to win delegates if they finish with at least 20% of the vote. However, a candidate who wins at least 60% of the vote receives all of the state’s 29 delegates.

Four candidates were on the ballot, including Trump and Nikki Haley. The other candidates, who have received little attention, were Florida businessman David Stuckenberg and Texas businessman and pastor Ryan Binkley, who recently ended his campaign.

North Dakota Gov. Doug Burgum, who ended his unsuccessful presidential campaign in December, was speaking on Trump’s behalf Monday night. He endorsed Trump before the Iowa caucuses.

“I think we’re going to send a message that is going to be a kickoff to tomorrow, which is President Donald Trump is going to close this out, this is going to be the end of the trail, and we’re going to say we have a nominee, and let’s go after it, and beat Joe Biden in the fall,” Burgum said in a virtual address to caucusgoers.

Retired music teacher and librarian Karen Groninger, of Almont, said Monday that she voted for Trump, calling him the best choice. The 76-year-old cited Trump’s 2020 speech at the annual March for Life anti-abortion event in Washington, D.C. — the first by a sitting president — and his border policies.

Longtime Republican state Sen. Dick Dever, of Bismarck, said he voted for Haley, but added she was unlikely to win. The retired factory representative, 72, said, “I hear an awful lot of people say that they really liked Trump’s policies but they don’t like the way he conducts himself, and I think he’s gone overboard a bit.”

Caucus voters were encouraged to be paying party members, but those who wouldn’t pay $50 for annual membership were asked to sign a pledge to affiliate with the party, caucus Chair Robert Harms said.

North Dakota is the only state without voter registration. The caucuses followed official state voter identification protocols, such as providing a driver’s license. Voting was done only in person and on printed ballots, which were hand-counted.

In 2016, it was a North Dakota delegate who helped Trump secure the number needed for the Republican presidential nomination.

He swept North Dakota’s three electoral college votes in 2016 and 2020, winning about 63% and 65% of those votes, respectively.

As president, Trump visited Bismarck and Mandan in 2017 to talk about tax cuts, and he campaigned twice in Fargo in 2018 for Republican Kevin Cramer in the then-congressman’s successful Senate bid against Democratic Sen. Heidi Heitkamp.

North Dakota’s Democratic-NPL Party is holding a presidential primary almost entirely by mail, with mail-in voting from Feb. 20 to March 30, and limited in-person voting for residents of Indian reservations. Biden, Rep. Dean Phillips and six others are on the ballot.

A third party will count ballots in Fargo on March 30, with results available on the party’s website afterward.

Sen. Bernie Sanders won the Democratic caucuses in 2016 and 2020.

Republican presidential candidate former President Donald Trump speaks at his Mar-a-Lago estate, Monday, March 4, 2024, in Palm Beach, Fla. The Supreme Court unanimously restored Trump to 2024 presidential primary ballots, rejecting state attempts to ban him over the Capitol riot.

Rebecca Blackwell – staff, ASSOCIATED PRESS

Claus, left, and Marsha Lembke, right, handle ballots for Republican caucus voters on Monday, March 4, 2024, at Bismarck State College in Bismarck, N.D. The college is one of 12 sites for the North Dakota Republican caucuses.

Jack Dura – staff, ASSOCIATED PRESS

Republican presidential candidate former UN Ambassador Nikki Haley speaks at a campaign event in Spring, Texas, Monday, March 4, 2024.

David J. Phillip – staff, ASSOCIATED PRESS

FILE – The North Dakota Capitol tower rises in the background behind a stone sign, April 19, 2012, in Bismarck, N.D. North Dakota’s Republican presidential caucuses are Monday, when voters will gather at 12 sites around the state. Donald Trump, Nikki Haley and two other candidates are on the ballot.

Dale Wetzel – staff, ASSOCIATED PRESS

Casey Cashman, left, of Bismarck, places his ballot into a box as Bailey Doll watches at the North Dakota Republican Presidential caucus on the campus of Bismarck State College, Monday, March 4, 2024, in Bismarck, N.D.

Tom Stromme – member, ASSOCIATED PRESS

Claus Lembke, left, and Andrew Bornemann, right, count Republican caucus ballots on Monday, March 4, 2024, at the caucus site at Bismarck State College in Bismarck, N.D.

Jack Dura – staff, ASSOCIATED PRESS

U.S. Sen. Kevin Cramer, R-N.D., addresses the audience at the Republican presidential caucus, Monday, March 4, 2024, at Bismarck State College in Bismarck, N.D. Cramer is a staunch supporter of former President Donald Trump.

Jack Dura – staff, ASSOCIATED PRESS

Donald Trump supporter Charles Tuttle, of Minot, sets out a row of Trump flags outside Minot Municipal Auditorium, where voting in the GOP caucus took place Monday, March 4, 2024, in Minot, N.D.

Jill Schramm – member image share, ASSOCIATED PRESS

Voters line up at a GOP caucus site at Minot Municipal Auditorium in Minot, N.D., on Monday, March 4, 2024.

Jill Schramm – member image share, ASSOCIATED PRESS

Republican presidential caucusgoers gather after voting at the caucus site, Monday, March 4, 2024, at Bismarck State College in Bismarck, N.D. Gov. Doug Burgum spoke virtually on behalf of former President Donald Trump. Former U.N. Ambassador Nikki Haley and Florida businessman David Stuckenberg also addressed caucusgoers remotely.

Jack Dura – staff, ASSOCIATED PRESS