Explain and discuss why the usa has only two major political parties by focusing on representation, the party system, political culture, and the nature of electoral systems. how might a third party emerged in the american political system

Federalist vs Anti- Federalist were the first two big political parties.  

Those that wanted a big government and those that wanted a small government.  

Americans affiliate themselves to one side or another.  

Party system allows for one party to represent the majority of people.  

A third party emerges when enough people like a voice, and so stick with that one subject line.  Green party, tea party, no - nothing party, anti - slavery party  

Third parties allow to join one political party, to help their voices heard.  

Word of mouth.