Mike Collins argues he can unite Georgia GOP in challenge to Democratic US Sen. Jon Ossoff

Rep. Mike Collins, R-Ga., center,, is joined from left by Senate Majority Leader John Thune, R-S.D., Sen. James Lankford, R-Okla., and Sen. Katie Britt, R-Ala., as they talk to reporters about the Laken Riley Act, a bill to detain unauthorized immigrants who have been accused of certain crimes, at the Capitol in Washington, Jan. 9, 2025. (AP Photo/J. Scott Applewhite, File)

Second-term Georgia Republican U.S. Rep. Mike Collins is seeking to solidify support as he seeks the GOP nomination to challenge Democratic U.S. Sen. Jon Ossoff in 2026.

Collins, who’d declared his intent to run in July, officially launched his candidacy Tuesday in his hometown of Jackson and then spoke at a Georgia Chamber of Commerce luncheon in Columbus. He’s trying to appeal to both President Donald Trump’s base and more traditional business conservatives.

The owner of a trucking company and son of a former congressman, Collins has won endorsements from dozens of Republican state lawmakers, despite GOP Gov. Brian Kemp backing newcomer Derek Dooley. Fellow GOP congressman Buddy Carter also is in the race.