A staunch ally of U.S. President Donald Trump, Kris Kobach, won the closely contested Republican nomination for the Kansas governor's race on Tuesday when incumbent Gov. Jeff Colyer conceded the election.

Kobach's win marks another successful endorsement for Trump, who has weighed in on Republican primaries in several state and federal races, including Georgia's governor primary, signaling the embattled president remains popular with his base.

Kobach, who serves as the Kansas secretary of state, had received 128,543 votes in the latest tally for the Aug. 7 primary election, or 345 more votes than Colyer.