All I have is a passport. As a citizen, I never had any "papers". If I was stopped on the street today, I could not prove my citizenship. Neither could 1poorlady since she doesn't carry her naturalization certificate with her (but it could be retrieved from the safe with one phone call to our daughter).

Check with the authority in your state that issues driver's licenses. Michigan offers an "enhanced" driver's license, which *is* proof of citizenship, with an embedded RFID chip that, supposedly, the storm troopers can scan to verify your citizenship. My license expires this year. I will be trotting down to the Secretary of State office, with dox in hand, to upgrade to an "enhanced" license. Otherwise, the US issues a passport card, that is easier to carry than the passport book.

I'm still waiting for ICE to scoop up and deport someone who is a citizen, but can't prove it in the moment.

Being a citizen does not stop you being roughed up. I posted the video, some weeks ago, of a kid, working at a suburban Minneapolis Target, that storm troopers roughed up and shoved into their vehicle, in spite of the kid protesting that he is a citizen, and had his passport on him. But, he was brown. After the roughing up, and detaining him for a while, the storm troopers dumped him at a WalMart, some miles from the Target, where he was grabbed.

Steve