Iowa caucus

Florida Gov. Ron DeSantis told South Carolina voters he is best positioned to beat former president Donald Trump over their former governor, Nikki Haley, who placed third in the Iowa Caucus.

Donald Trump continues to dominate polls in Iowa despite losing out on a coveted endorsement from the popular governor. Kim Reynolds endorsed Gov. Ron DeSantis instead but voters aren't sold.

Iowa's popular Republican governor's endorsement is highly coveted in the Iowa Caucus. A source familiar with the matter confirms Reynolds will put her political power behind Florida Gov. DeSantis.

The failure of this year's Iowa caucuses was years in the making, some technology specialists argue, in part because of the haphazard way political users buy software.

Marco Rubio was the surprise beneficiary of heavy GOP turnout and made the fight for evangelicals a three-way contest. Bernie Sanders won with younger voters, but not enough voted for him to win.

The first real votes of the 2016 presidential election are rolling in tonight. We mark the occasion with questions, answers, links to NPR's coverage — and a walk down memory lane.

The former Pennsylvania senator, who won Iowa in 2012, hopes he can do it again. But with a more crowded field, he might find it difficult to stand out.