Originally Posted by
Beltway2A
I'm not really sure what you mean here. Zemel v. Rusk clearly upheld State's refusal to validate passports for travel to Cuba. There's maybe a separation of powers issue, but it has nothing to do with restricting the movement of citizens.
As I said, it's outside my area of expertise.
I just skimmed
Zemel. It is, of course, still good law, but I wonder whether another SC, including the present one, would decide it the same way.