But they were NOT married by a Catholic priest, were they? In an Episcopal church ?
True. That would make the marriage invalid. And no priest WILL marry them unless there are official decrees of nullity of Donald’s previous marriages. Melanie could not have received a dispensation from form for the same reason.
But it is possible the marriage could be regularized—depending on the facts about the previous marriages.
Worst case: Melania waits until Donald dies to start receiving Communion. The Helen Hayes stategy.