As of the morning of Thursday, November 10, control of each chamber of Congress remains undecided.
U.S. Senate
At 49 Republicans and 48 Democrats, the battle has come down to Arizona, Georgia, and Nevada. The party winning two out of three of those will control the Senate in 2023. The Georgia race is going to a December 6 runoff. Whether that will be the decisive election - as it was in 2020 - will hinge on whether the same party wins both Arizona and Nevada.
Pennsylvania is the only Senate seat that has flipped thus far. In Alaska, we know a Republican will win, but we won't know which one until November 23.