The news that Senator Johnny Isakson will resign from his Senate seat by the end of the year for health reasons makes the prospect of the GOP holding onto its narrow three-seat majority scarier.  Richard Baehr writes: Isakson was the slight favorite to hold his seat.  Georgia's white percentage is now about 60 percent, and black turnout is soaring (about a third, voting 95% Dem).  This is now a tossup race, and the GOP's hold will depend on the candidates picked by both parties, and how Trump does in the state.  It is no sure thing he will win it in 2020 (he won by 5% in 2016), and the governor's race was a 1% race in 2018. Isakson's seat was through 2022, but now the Republican governor will appoint a fill-in, through end of 2020.  So whoever is appointed or whoever turns out to be  GOP nominee, if there is a primary, will have to run in 2020, and then again in 2022. David Perdue's...(Read Full Post)