Side Issue: The Real ID Poll Tax

I've been avoiding a side issue that I think is really not essential to evaluating Real ID, but I'll post about it this once. There have been several suggestions, including a government commission recommendation, to require Real ID licenses in order to vote. Senator Sam Daschle reasonably calls this idea a Poll Tax here. I hope our governments do not waste a lot of time on this idea, because courts have consistently held that any slightly draconian requirement to qualify voters is unconstitutional.