Dan: I did a little research into the electoral background of Marjorie Taylor Green, who is getting a lot of national attention. I was trying to test your hypothesis that gerrymandering would be responsible for bringing her into elected office.
She was elected in the 14th District of Georgia. She won quite handily with a 74% of the vote. The Republicans could have run a fence-post against God and still won.
I don't see any evidence of gerrymandering. The shape is reasonably rectangular. The northern and western boundaries are defined by neighboring states. The big towns are not split up. Nor are there any "corridors" to hook up areas that hook up regions with little commonality. But there is a little knob in the east-central part of the 14th that could be taken out and equivalent area east of Rome put in its place. But the R's would have still won this district. Rural Georgia is strongly Republican. There is no way an independent commission can slice up this region to bring in enough Democrat voters to seriously challenge the Republican candidate.
She did not handily win the 2020 Republican primary. I have my doubts any gerrymandering was done to get all the whacky Republicans in one district to elect a whacky candidate, who would then easily win the election. Political parties just cannot plan that intricately and that far into the future. Even the parties that are planning a coup.