North Dakota Gov. Doug Burgum

‘It is now up to Donald Trump to earn the votes of those in our party and beyond it who did not support him,’ Ms. Haley said.

Voting is set to take place between 5 and 8 p.m. CST at a dozen caucus locations across the Republican-leaning state.

Republicans held four presidential-preference contests in three states so far–and all four have made history, boosting the former president’s 2024 run.