" ... because crossing the border is not a constitutional right." Yes, it is. "In Nguyen v. INS (2001), on a separate matter of citizenship, the Supreme Court

" ... because crossing the border is not a constitutional right." Yes, it is. "In Nguyen v. INS (2001), on a separate matter of citizenship, the Supreme Court put down, in writing, that citizens of the US have the absolute right to enter its borders. It was in recent times more or less presumed to be the case, though historically there have been a wide range of decisions that did deny entry by citizens, mainly by denying the underlying citizenship. This right extends to lawful permanent residents, so long as they maintain their status."[1] [1] https://www.quora.com/Can-a-U-S-citizen-be-denied-entry-into-the-United-States https://www.quora.com/Can-a-U-S-citizen-be-denied-entry-into...