Senator Kelly Loeffler speaks at a campaign event attended by Ivanka Trump and Senator David Perdue on December 21, 2020 in Milton, Georgia. The two Georgia U.S. Senate runoff elections on Jan. 5 will decide control of the Senate.The two Georgia runoffs will decide control of the US Senate and determine how much of Biden'sGoing into the runoffs, Republicans control 51 seats compared to 48 for Democrats .
But if the Democrats win both seats, the composition of the Senate will be 50-50, with Democratic Vice-president elect Kamala Harris serving as the tie-breaking vote. Because of Harris' role as president of the US Senate, Democrats would hold the majority in the chamber.