Concept of two-party system: The so-called two-party system refers to the political party system in which two evenly matched political parties take turns to govern in capitalist countries by winning parliamentary majority or presidential election. It refers to the political system in which the two major political parties take turns to govern, and does not mean that a two-party country has only two ruling parties.
Features:
The two-party system is mainly manifested in the presidential election. A: The president is both the head of state and the chief executive, and holds the real executive power. B: The number of seats of the two parties in parliament has nothing to do with the status of the ruling party and the non-ruling party.
The two-party system in the United States has a loose organizational structure and no strict voting discipline.