Final answer:
A two-party system is a party system where two major political parties dominate the political landscape. It is a common feature in many countries, including the United States. Historically, the United States had different party systems, but currently, the Democrats and Republicans are the two major parties.
Step-by-step explanation:
The subject of this question is Social Studies.
A two-party system is a party system where two major political parties dominate the political landscape. It is a common feature in many countries, including the United States. The two-party system in the United States has been shaped by various factors throughout history, such as electoral rules, historical events, and ideology differences. The winner-take-all Electoral College system and state ballot rules make it challenging for third parties to be successful.
Historically, the United States had different party systems, starting with the Federalists and Democratic-Republicans, then the Whigs and Democrats, and now the Democrats and Republicans. While third parties exist, the United States is considered a two-party system because only the two major parties have a realistic chance of wielding political control.