Republican voters look like they're sticking with Trump: Is the primary too 'boring' to matter?

According to voter and expert interviews -- and nearly all polling -- Republicans prefer one candidate to the others: Trump

Kurt Kreuger attended a presidential campaign event for former South Carolina Gov. Nikki Haley in Cedar Rapids, Iowa, on Thursday -- not that he felt it would make much of a difference.

Kreuger, a 33-year-old from the city, is still deciding who to vote for in Monday's caucuses, which kick off the race for the 2024 Republican presidential nomination after months of candidates on the trail. Kreuger said he's leaning toward backing entrepreneur and commentator Vivek Ramaswamy but is seriously weighing all of his options after voting for former President Donald Trump in 2020.

But while his personal ballot is still up for grabs, he said, the race overall isn't.

"Trump's going to win the caucus," Kreuger predicted to ABC News. "There's no chance anybody else wins."

That sentiment was echoed in recent interviews with a dozen voters and Republican operatives in the early voting states of Iowa, New Hampshire and South Carolina which, along with the Nevada caucuses, encompass the first phase of the primary election.