As Joe Biden is inaugurated as America's 46th President, browse his votes as a U.S. Senator
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
The Senate failed, barely, to secure a two-thirds majority in favor of convicting President Andrew Johnson
Joseph Rainey (R-SC), born into slavery, was the first African-American elected to the House of Representatives.