I don't believe this is true, and the reason I don't is that this question nerdsniped me and I looked up every state and found that they all, every one of them, including the ones that made me click into PDFs to verify the fact, accept passports as identification in order to obtain Real ID drivers licenses.
Hah, thanks, I sort of suspected as much, weird as US id stuff is. Like if you'd told me 20+ years ago that the federal government can't get states to standardize their ids even in full anti-terrorism super saiyan mode, I'd have thought that was bullshit too.
Do you know which state governments?