U.S. President Donald Trump has endorsed Republican Representative Mike Collins in a Georgia Senate runoff ahead of the upcoming midterm elections.

Collins will face former football coach Derek Dooley in Tuesday’s runoff to decide who will challenge Democratic Senator Jon Ossoff in November.

Trump praised Collins on Truth Social, calling him a strong supporter of the MAGA movement and a “true friend, fighter, and WARRIOR.”

The Georgia Senate race is seen as a key battleground, with Republicans hoping to flip the seat as they try to maintain their narrow Senate majority, Al-Jazeera has reported.

Democrats, meanwhile, aim to gain control of Congress to counter Trump’s agenda in his final two years in office.