Source: Credit Perdue for SenateThis 2022 Georgia gubernatorial election is shaping up to be a rough one for Republicans. Democrat Stacey Abrams is opposing Republican Gov. Brian Kemp, possibly as a steppingstone to the White House. Former Sen. David Perdue, citing concern that Kemp can't beat Abrams, is running against Kemp in the Republican primary. Former President Donald Trump endorsed Perdue this week, leading to neck-and-neck poll results for the contest between Kemp and Perdue. Both are already running ads that focus on stopping Abrams. Kemp defeated Abrams in the general election in 2018, but Abrams did not concede --...