The Hawkeye state has held a caucus every four years since the 1970s and is one of only nine states that still implement the practice, according to WQUAD8, a local ACB News affiliate. Eligible voters who are registered with the party and over the age of 18 will meet at 7 p.m. Central Time on Jan. 15 in schools, churches and event centers across the state after weeks of aggressive campaigning by Republican candidates.
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