A majority of likely Republican caucusgoers in Iowa have yet to decide who they will support as the presidential nominee.

As the 2024 GOP candidates prepare to take the stage in the Republican National Committee's first debate on Wednesday, a sizable 52% of probable GOP caucusgoers in Iowa reported they could be persuaded when it comes to which Republican candidate they will support, according to a new poll from NBC News/Des Moines Register/Mediacom.

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Among those who support former President Donald Trump, 34% said they could be persuaded to vote for another candidate, while 66% said they are set on Trump. Of those who favor Gov. Ron DeSantis (R-FL), 69% said they could be persuaded to support another candidate besides the Florida governor, while 31% reported their minds were made up.

Trump ranks the highest as the likely Iowa caucus attendee's first choice, coming in at 42% and ranking 19 points above DeSantis.

Next year's Iowa Republican presidential caucuses will be held in mid-January, and candidates have already been campaigning, fundraising, and courting voters with five months until they cast their ballots. Most GOP candidates flocked to the Iowa State Fair over the last couple of weeks, including Trump, who originally wasn't slated to make an appearance.

While Trump's numbers in the Hawkeye State are leading over those of his fellow Republican nominees, some party members are not as convinced he will carry the state.

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Gov. Chris Sununu (R-NH) pointed out Iowa as being one of two states Trump is grappling with, writing an op-ed for the New York Times pledging to work to ensure Trump is not the GOP nominee.

"In Iowa and New Hampshire, the first two states that will vote in the 2024 Republican primaries, Mr. Trump is struggling. In both Iowa and New Hampshire, he is consistently polling in the low 40 percent range. The floor of his support may be high, but his ceiling is low," Sununu wrote.