Political parties have evolved in the United States since its founding, though the Constitution does not mention them. Originally, some founders like George Washington hoped to avoid their formation. However, the Federalist and Democratic-Republican parties emerged in the early years of the country's history to represent differing views on the role and powers of the federal government. Over time, these parties transformed into the modern Democratic and Republican parties, though they have shifted in their policy positions. Today, the Democratic Party is considered more liberal and the Republican Party more conservative, but both encompass a range of views. While third parties exist, the two major parties have maintained their dominance of American politics for over 150 years.