Explore current and historical political parties, map party control, and learn about polarization.
Sen. Rand Paul's motion to hold that the Senate cannot try an impeached official who is no longer in office was defeated 55-45. Most legal scholars agree such a trial is permissible.
The Senate's attempt to repeal the Affordable Care Act narrowly failed due to a surprise defection by Sen. John McCain
Visualize the first time in history a cabinet nominee's confirmation ended in a tie.
Explore the votes of Hiram Rhodes Revels, the first African-American man elected to the Senate
