A Washington Post photo gallery shows Americans celebrating Democrats' election-night sweep, in which the party regained control of the House and Senate and won close races in Texas, Michigan, Georgia and other states. The pictures capture firsts including James Talarico's Texas Senate win, Abdul El-Sayed becoming the first Muslim U.S. senator, and Keisha Lance Bottoms becoming the first Black female governor, which staff call a historic blue wave and a rebuke to President Trump.