Republican Rick Jackson is sounding the alarm over sluggish early voting across deep-red rural Georgia, warning that complacency in GOP strongholds could jeopardize his bid for governor. At a campaign stop Tuesday night in Calhoun, the billionaire nominee was surprisingly candid about his party’s struggles. “I’m concerned,” he said. “I am concerned that rural Georgia still thinks we’re red and therefore they look at somebody like myself and my opponent and just say, ‘Well, there’s no comparison.’” His worry is that reliable Republican voters are taking victory over Democrat Keisha Lance Bottoms for granted. Democratic-leaning areas are far outpacing GOP-leaning...