The majority of likely Iowa Republican caucus attendees said they believe former President Trump won the 2020 election, according to a new poll.

The NBC News/Des Moines Register/Mediacom poll found that 51 percent of likely caucusgoers — which includes Republicans and independents — said they believe Trump’s unproven claims that he won the 2020 election. Forty-one percent said they do not believe him, while 8 percent said they are not sure.

Sixty percent of self-identified Republicans said they believed Trump’s claims. Of those who listed the former president as their first-choice candidate, 83 percent said they believed Trump won the election in 2020 over President Biden.

Those who do not support Trump are also less likely to say he won the 2020 election. The poll found 29 percent of those who do not support the former president in 2024 believe he won the 2020 election.

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The poll also found nearly two-thirds of likely caucus attendees believed Trump has not committed serious crimes, despite him being indicted four times over the past year.

According to the poll, 42 percent of likely caucusgoers said Trump was their first-choice candidate for the 2024 GOP primary. Florida Gov. Ron DeSantis received 19 percent of the vote, while South Carolina Sen. Tim Scott received 9 percent support.

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Even though Trump maintains a strong lead among likely Iowa Republican caucusgoers, most of the respondents added they have not made up their minds on a 2024 candidate, and they could be persuaded to support someone else.

The poll was conducted between Aug. 13-17 among 406 Iowa voters likely to attend the 2024 Republican caucus and has a margin of error of 4.9 percentage points.

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