The Iowa caucus is/are a series of electoral events in which members of the Democratic and Republican parties in Iowa, which are the first in the United States presidential primary cycle, gather in precincts to select delegates to the county conventions who will then, in turn, select delegates to the state and national conventions. These caucuses provide an early indication of which candidates might win the party’s nomination, and historically, they have been seen as a crucial test to gaining momentum in the presidential race.