Considering that a Republican state Senator said that the lines were not drawn for a Democrat to represent that district...
That State Senator may just be an old man whose logic is "A District with northern Fulton county and parts of Cobb? There's no WAY a Democrat can win that!" because he doesn't get how trends work.
"At a GOP breakfast on the district’s eastern DeKalb outskirts, state Sen. Fran Millar criticized Democrats who think it’s a 'done deal that this kid’s going to become the Congressman.'
" 'I’ll be very blunt: These lines were not drawn to get Hank Johnson’s protégé to be my representative. And you didn’t hear that,' said Millar. 'They were not drawn for that purpose, OK? They were not drawn for that purpose.' "
http://politics.blog.ajc.com/2017/04/15/warring-republicans-try-to-unite-against-ossoff-in-georgias-sixth/