Mail in balloting and harvesting. Just remember it is who/what that counts the votes and pays for them. It is easy to rig certain "statement" races, than every single one.
The problem is the officials in the proper places don't want any changes to this system. Cabal need abortions for their stuff, so that issue will take precedence. Another precedent is the whether candidate is Trump endorsed. They can rig elections very easily now. They may allow a few races for other candidates to win, but soon it will be only the selected ones.