We have to push as much early voting as possible and bring your video cameras to the polls with you.
If these rumors that the Republicans intend to hold up the lines, hoping that people will either get tired of waiting and leave or the polls will close before they get the chance to vote, then early voting will make that less effective. It's working in Palm Beach. The more people that vote every day up to November 2, the shorter the lines and the fewer names they have to argue about on November 2.
Secondly, bring your video cameras with you. Although many of these plans aren't something you can catch on tape and automatically show as illegal, maybe some of the less crazy folks will decide against their efforts if they see a bunch of cameras around. They won't know which ones are on them and probably don't want to be caught on tape.