I would expect that before it is over marriage to whatever adult person you wish will be legal and plural marriage will be also. After all what is the argument against it. Same sex marriage is legal. People are arriving in the U.S. already married in polygamous unions. It can be claimed that denying legal status to such a union is religious discrimination. Stand by, we'll find out soon enough.

Patriotism (and religion) is the last refuge of a scoundrel.

Jesus: "Take heed that no man deceive you."