President Donald Trump and Governor Brian Kemp are backing opposing candidates in Georgia's Republican Senate primary runoff this month [1].

The divide between the two leaders highlights a significant split within the state GOP as they vie for influence over the party's nomination. The outcome of the race will determine which vision of the Republican platform takes precedence in the state.

Trump has endorsed Rep. Mike Collins (R-GA) [1]. Meanwhile, Kemp has thrown his support behind Derek Dooley, a former college football coach [1]. The two candidates are the only figures remaining in the GOP runoff [4].

The election is scheduled for Tuesday, June 2026 [2]. This late-stage intervention by the state's most powerful Republicans reshapes the dynamics of the battle for the seat [2].

Both candidates are competing for a base of voters that remains divided between the populist appeal of the Trump wing and the institutional support of the Kemp administration [1]. The runoff serves as a proxy battle for control over the Georgia Republican party's future direction [3].

Because the runoff occurs in June 2026 [2], the candidates have limited time to leverage these high-profile endorsements to sway undecided primary voters. The clash puts the president and the governor on opposite sides of a high-stakes political showdown in the U.S. South [3].

Trump and Kemp are backing opposing candidates in Georgia's Republican Senate primary runoff.

This public disagreement between President Trump and Governor Kemp underscores a continuing tension between the national MAGA movement and state-level GOP establishments. By backing different candidates, the two leaders are testing whose endorsement carries more weight with Georgia's primary electorate, which could influence future Republican strategies in swing states.