Regardless of who controls the Senate next year, Republicans and Democrats will have the same leaders they do now.
The Senate GOP on Tuesday unanimously reelected Senate Majority Leader Mitch McConnell as the caucus' leader. Likewise, all Senate Democrats chose Senate Minority Leader Chuck Schumer to head their caucus.
The election results have not yet indicated who will enter the next Congress with a Senate majority. Republicans and Democrats will both come out of the 2020 election with at least 48 Senate seats, a net gain of one for Democrats, NBC News projects.
NBC has not called the winner of four Senate races. At least one outstanding race, and potentially two, in Georgia will get decided by a runoff in January.
Democrats entered Election Day with hopes of flipping the Senate, which would give the party unified control of government. Joe Biden will win the White House and Democrats will keep their House majority, according to NBC.
Holding the Senate would give Republicans a buffer against Democratic priorities.
McConnell has led the Senate GOP since 2007. The Kentucky Republican has been majority leader since 2015. He won reelection to the Senate last week with a roughly 20 percentage point victory over Democrat Amy McGrath.
Republicans will keep largely the same leadership team, as Sens. John Thune of South Dakota, John Barrasso of Wyoming, Roy Blunt of Missouri and Joni Ernst of Iowa will again round out the top five positions in the caucus. Sen. Rick Scott of Florida will take over the National Republican Senatorial Committee, the party's campaign arm.
Schumer, a New York Democrat, succeeded Harry Reid as Senate minority leader in 2017. The current Democratic leadership team will remain in place in the next Congress: Sens. Dick Durbin of Illinois, Patty Murray of Washington and Debbie Stabenow of Michigan will keep their spots as the second-, third- and fourth-ranking members of the caucus, respectively.
Sens. Cory Booker of New Jersey and Catherine Cortez Masto of Nevada will also hold Democratic leadership spots.