A primary election is the election used to determine which who will be each party?s candidate for office. For example, in 2008 the democratic primary elected Barrack Obama to be their candidate. A party caucus is a group of members in a party from a community that discuss whom they feel they their candidate should be in the upcoming election. The district results are reported to the county, and the county results are then reported to the states, which are then reported to the country, and used to determine each party?s final candidate.