More: At town hall, McBath doesn't rule out bid for Senate in Georgia
More: Rumors and posturing: The shadow campaign for Isakson's Senate seat
Kemp must also factor into the mix a potential 2021 election sandwiched between the two votes. Since the race for Isakson’s seat is a “jungle” special election with no party primaries to decide nominees, a January 2021 runoff would be needed if no candidate gets a majority of the vote.
Kemp has an array of potential candidates to choose depending on the approach he decides to take: An effort to energize the party's base with someone who appeals to conservative Donald Trump supporters or a chance to broaden the GOP's appeal in suburbs where Democrats have gained ground.
Among his options are U.S. Reps. Doug Collins and Tom Graves, Agriculture Commissioner Gary Black, Attorney General Chris Carr and U.S. Attorney BJay Pak. He's also likely to vet an unconventional contender, perhaps a business executive or judicial official, with little or no political experience.
About a dozen Democrats are weighing a potential bid, too, enticed by the unprecedented amount of attention and money that will pour into Georgia next year with two Senate seats on the ballot.