Reps. Buddy Carter (R-Ga.) and Mike Collins (R-Ga.) traded barbs while former college football coach Derek Dooley largely stayed above the fray during Sunday’s Georgia Senate GOP primary debate — one day before early voting begins. Carter, Collins and Dooley alongside former Senate candidate John Coyne and retired Brig. Gen. Jonathan McColumn are vying for the Republican nomination to take on Sen. Jon Ossoff… Â