Presidential candidates attend the Iowa State Fair and crisscross the state, stumping in the summer and fall before an election year because the Iowa caucus is the first voting measure of public support.
Iowa’s Republican and Democratic presidential caucuses will be held on Jan. 15, 2024. Candidates who fare poorly in Iowa may rethink their strategy or decide to drop out of the race based on their performance in the state, with a population of 3.2 million.