A grandson of former President Jimmy Carter, Jason Carter, may be the unexpected beneficiary of Republican Sen. Johnny Isakson’s announcement that he’ll retire at the end of the year.
The former state senator and 2014 Democratic gubernatorial nominee is being floated as a candidate for the seat Isakson said Wednesday he’ll vacate on Dec. 31, due to health concerns. Republican Gov. Brian Kemp will appoint a replacement to serve until the November 2020 elections, and the special…