There still are some basic standards for voter registration. You have to be alive, for one, and you have to be an American citizen, for another. Problem is that government doesn't enforce them too often. And that's another violation of citizens' rights!
Thanks justiceseeker93 — but a single, enforced federal standard for voting for federal offices would be fought tooth and nail by a lot of people around here, even though it is exactly what we need, because it would either necessitate a national ID or it would infringe on “state’s rights”.