Democrat Raphael Warnock will face off against Kelly Loeffler in January [Brynn Anderson/AP Photo]
Control of the United States Senate appears likely to hinge on two heated contests in the state of Georgia, where election runoffs are scheduled for early January.
The result in the southern US state would also determine how much a Joe Biden presidency would be able to achieve after the Democrat won the race for the White House on Saturday.
The stakes are high for a post-election cliffhanger that could determine the balance of power between Democrats and Republicans in Washington, as neither party appears to have secured a Senate majority.
So far, the tally for the next Senate is 48 Republicans and 46 Democrats – plus two independents