Tammy Baldwin (D-WI) became the first openly LGBT senator in 2012.
As Joe Biden is inaugurated as America's 46th President, browse his votes as a U.S. Senator
In 1965, Congress passed the Immigration and Nationality Act, which eliminated restrictions racial, ethnic, and national origin restrictions on immigration and established priority immigration procedures for family reunification.
The Senate narrowly votes to approve the Federal Air Highway Act, which funded construction of the Interstate system, linking America by car.
In 1866, the House voted 105-20 to try former Confederate President Jefferson Davis for treason -- the trial ultimately never occurred.