Republican presidential candidate Nikki Haley speaks during a town hall, Friday, Dec. 8, 2023, in Sioux City, Iowa. Former President Donald Trump was the first choice of 51% of likely Iowa caucus participants in a Des Moines Register-NBC News-Mediacom Iowa Poll published Monday, Dec. 11. Florida Gov. Ron DeSantis, who has vowed that he will win Iowa, had the support of 19 percent. Former United Nations Ambassador Nikki Haley, who has suggested she can beat DeSantis in the state and go head to head with Trump in later primaries, was at 16%. (AP Photo/Charlie Neibergall, File)