[inquest]

If that is so, then it seems to me that if Mr.& Mr. Smith from Massachussetts moved to Texas, they could challenge that law on the basis of the Full Faith and Credit Clause.

If Congress removes jurisdiction from the federal courts, what court are they going to challenge it in?

[Ken H]

If Congress removes jurisdiction from the federal courts, what court are they going to challenge it in?

Congress could create a special court to deal with marriage and they could limit appellate review of that court by the USSC.

However, Congress cannot shield their acts from some form of judicial review.