Primaries vs. Caucuses: How Presidential Nominees Are ChosenIn January 2024, Iowa held its Republican presidential caucus, after which Ron DeSantis dropped out of the race due to lower than expected numbers, falling far behind Trump for second place. A week later, New Hampshire held the first primary election, at which former President Trump again came out ahead for the Republicans, and President Biden won in a landslide over other Democrat candidates, despite the fact that he needed to be written in. All these primaries and caucuses might have you wondering, what’s the difference?