Behind-the-scenes, "the shadow campaign" is underway for U.S. Sen. Johnny Isakson's soon-to-be-vacated seat.

In this episode of the Politically Georgia podcast, host Greg Bluestein and AJC Washington correspondent Tamar Hallerman discuss the potential Republican appointees Gov. Brian Kemp could assign to Isakson’s seat following his retirement, as well as potential Democratic challengers that could run come 2020. Bluestein and Hallerman also discuss Isakson’s return to the U.S. Capitol and more.

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State Election Board Vice Chair Janice Johnston speaks during an election board meeting at the Capitol in Atlanta on Wednesday, Dec. 10, 2025. (Arvin Temkar / AJC)

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools