I already have one. It's called a passport.
If it's good enough for all the other countries on the planet, why isn't it good enough here?
Let's require all voters to show a passport to vote.
In fact, that was one of my first vanities back in 2001 or 2002, but sadly it was lost in one of the early database crashes.
-PJ
Passports are not required for a Citizen to simply exist. This “National ID Card” would be.