Arizona

The mechanism of gerrymandering depends on having a very large majority in some areas which you skim off to add to what would be a minority in other areas to give you a majority there. But if your majority isn't as big as you think it is, when you do that skimming you could be skimming yourself into a minority in the very places you thought you were strongest. This is why they are working so hard on other vote suppression methods; gerrymandering is for them at best a stopgap solution. The ongoing demographic changes and the very outrage they are inspiring undermind gerrymandering as a tool for maintaining their majorities.