Can you imagine the progeny that might spring from such a union. It is beyond incomprehensible.
Mary Matelin and James Carville are married. Rush is very good personal friends with both of them. Carville was at Rush's last wedding and I believe the Carville/Matelin wedding was at Rush's house (but I'm not certain). At a certain level of national prominence, people need to be able to have personal friendships with people of opposing political views in order to remain successful.