BRUNSWICK, Ga.—Georgia Rep. Mike Collins prevailed in the U.S. Senate Republican primary runoff on Tuesday and will take on Democratic incumbent Sen. Jon Ossoff in the general election this fall. Collins, who received a late endorsement from President Donald Trump days before the contest, garnered 55.2 percent of the vote by 8:37 p.m. ET, when the Associated Press called the race, over challenger Derek Dooley, who trailed with 44.8 percent. “Georgia, I’m honored to be your Republican nominee for the United States Senate,” Collins wrote in a post on X after the race was called. “Now it’s time to get to work, defeat Jon Ossoff, and take this seat back for the people of this state.”...