Ding, ding, ding! We have a winner!
This is absolutely nothing more than the standard vacuous liberal cliche being pawned off as common opinion.
A 1996 federal law says the states are not obliged to recognize lawful same-sex unions from other states, and there is no nationwide federal court order reversing that nor is there likely to be.
The problem with that law is that it could be struck down as unconstitutional because it violates the full faith and credit clause of the Constitution in Article IV Sec.1 which reads:
Full Faith and Credit shall be given in each State to the public Acts, Records, and judicial Proceedings of every other State. And the Congress may by general Laws prescribe the Manner in which such Acts, Records and Proceedings shall be proved, and the Effect thereof.
This clause is the reason why a marriages contracted in one state are recognized as valid in another state.