What are the two major political parties in the United States?

The Democratic and the Republican parties are.

The two parties are the Republicans and Democrats. They are the parties from which the presidents who are elected represent. Currently in office is Obama, who is a Democrat. Republicans are also known as conservatives. The two parties typically disagree on everything (which led to this year's government shutdown), especially dealing with gun rights, LGBTQIA+ rights, war, and the debt crisis.