American government utilities a two party system where two individuals compete for a seat for public office. According to Duvergers law a single-member district and a winner take all system results in a two party system. Furthermore, in the a two party system consists of two major political parties, two candidates running for republican and two for democrat. Unlike a multi party system which allow multiple political parties to run for government either solely or in a coalition. In addition to this military party system also relies on proportional representation in where the legislative seats are allocated to parties in proportion to the percentage of votes they win in elections, unlike the majority wins with two party system.
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