I'm not as worried for this reason. The courts, even the SCOTUS, have repeatedly ruled against restricting voting purely for political ends. Voter ID is fine, but not if its passed two months before election day for example. What does need to happen however is voting rights advocates need to start bringing their cases to court. So, if one precinct is forced to wait hours to vote over multiple elections while another runs smooth as clockwork, I'd bring that to court if I had standing (as in a voter in that district). Or if you've done some tortured gerrymander do the same every time you think its happened.
I fear people rely too much on the courts to do their dirty work for them sometimes, particularly when it comes to elections. Lets say early voting matters to you. Or you feel redistricting was unfair. In most states you can remedy that with a citizens initiative on the ballot. This solves a lot of problems that a partisan legislature or unpredictable court will not.
