[CobaltBlue]

A state may refuse to recognize a marriage which is legal in another state because it is void against the public policy of the first state. That's black letter law. If Utah decided to recognize bigamous marriages, I doubt very much that Virginia would honor them.

How that actually plays out in your state is another matter.

[PatrickHenry]

If Utah decided to recognize bigamous marriages, I doubt very much that Virginia would honor them.

Isn't that why Utah had to give up the legality of such marriages as a precondition of statehood? I'm not certain of this, but I'm "fairly" certain.

[PatrickHenry]

Actually, I think what your "local public policy trumps the FF&C clause" doctrine amounts to is something very close to the old Nullification Doctrine, advocated before the Civil War by such as Calhoun. I understand that Calhoun wanted his state to ignore Federal laws, but still, an "unnatural" marriage from another state that is imposed on yours by virtue of the FF&C clause would be valid in your state unless your state could raise something like the old (and now discredited) nullification doctrine.