There were 3 major legal philosophies that have influenced the American legal system. These philosophies include the philosophy of natural rights, political philosophy, and the philosophy of classic republicanism.
A two-party system refers to a system where there are only two political parties with significant influence. In the U.S., the two main political parties are the Democratic Party and the Republican Party.
The two main political parties in Australia are: The Australian Labor Party (ALP or Labor), and; The Liberal Party The Liberal Party is in a coalition with the National Party forming what is known as 'the Coalition'