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.
Passports are not required for a Citizen to simply exist. This “National ID Card” would be.