[soneil]

I'm curious, what ID can be assumed to be proof of citizenship? The only thing that springs to mind (I'll admit I'm not american, but have a little experience there) would be a birth certificate. Which generally doesn't fall under 'Photo ID'.

(Genuine question; I realise such matters very wildly from state to state, and my experience is limited to Michigan - which didn't have this requirement, and I don't believe issues any ID other than drivers licence, or a 'state ID' - a voluntary substitute for the drivers licence where the licence isn't held)

[_kst_]

A birth certificate doesn't prove citizenship. Someone born in the US could emigrate and become a citizen of another country, then re-enter the US on a visit. Conversely, someone born elsewhere could be a naturalized citizen.

A passport could prove citizenship (assuming the passport office checks properly before issuing it), but not everyone has a passport.

[mhurron]

> what ID can be assumed to be proof of citizenship

A passport, but a drivers license is acceptable for voting.

[gohrt]

ID is not proof of right to vote. The polling place has voter rolls, and being on that list is proof of right to vote. To get on that list requires registration.