Explore current and historical political parties, map party control, and learn about polarization.
As Joe Biden is inaugurated as America's 46th President, browse his votes as a U.S. Senator
The House impeached President Donald J. Trump for a second time, an unprecedented feat in U.S. history, on charges of fomenting insurrection
The 42nd Congress voted 115-65 to establish Yellowstone, America's first national park -- despite concerns surrounding federalism
Use the 'tabular view' to quickly check NOMINATE scores
