Well, voter ID has been upheld by the Supreme Court. One must be a citizen to legally vote. It seems like a logical extension of documenting identity and eligibility to vote.
But to liberals, I know that none of this makes any sense. To liberals, we can’t have any restrictions or documentation because some old lady somewhere, never ever got a driver’s license or government issued ID. Because there are some rare cases such as this, liberals take the position that we can’t ask anyone for any documentation of eligibility.
The only reason this issue is before SCOTUS is that Congress passed the Motor Voter Act in 1994, which permitted people to register to vote without showing proof of citizenship. The issue is whether that Congressional statute trumps the state law.