Ducey will join Kemp at five stops around metro Atlanta on Saturday. Nebraska Gov. Pete Ricketts and former New Jersey Gov. Chris Christie are also expected to rally for Kemp in the final weeks before the May 24 primary.
The three are each key players in the Republican Governors Association, which has already shelled out about $5 million to defend Kemp against a challenge from former U.S. Sen. David Perdue.