Just under half of Iowa Republicans said they were part of the MAGA movement, according to entrance polling Monday night. A large majority of them supported Trump. Among the other half of caucus-goers, support was more split.

Methods: These findings are entrance poll results from interviews of 1,584 caucus-goers as they entered randomly selected caucus locations across Iowa on Jan. 15, 2024. The poll was conducted by Edison Research for the National Election Pool (ABC, CBS, CNN, NBC), The Washington Post and other media organizations. Results were weighted to match vote tallies by region and to correct for differential participation by subgroup. Totals may not add to 100 percent because of rounding.