Republicans held on to a seat in the U.S. Senate on Tuesday after a close race in the state of North Carolina, dealing another blow to Joe Biden's Democrats in their bid to take control of the chamber. Republican Senator Thom Tillis was assured re-election after his Democratic opponent, Cal Cunningham, conceded the race. 

Cunningham said in a statement that he had called Tillis to congratulate him even though complete results from the November 3 election have not yet been announced.