Explore current and historical political parties, map party control, and learn about polarization.
The 22nd Amendment, which established term limits for the Presidency of the United States, passed with some bipartisan support.
The Senate's attempt to repeal the Affordable Care Act narrowly failed due to a surprise defection by Sen. John McCain
Explore the votes of America's longest-serving Speaker of the House, Sam Rayburn, who presided over key civil rights votes
Visualize the 117th Senate and its members, and compare it with past congresses
