How much do they count?

Each state gets a set number of delegates based on population. For example, California has 172 Republican delegates because a lot of people live there. Missouri, with a smaller population, has 52. In the Democratic Party, delegates represent votes proportionally (i.e. if Candidate A gets 60% of votes, 60% of the delegates will represent him or her). Republicans, however, usually use a "winner-take-all" strategy (Candidate B gets 60% of the vote, all the delegates will vote for him or her)