Had an interesting situation arise today and got me thinking. Obviously, it is illegal in all 50 states. Should it be? Why? If a man had 2 "wives" living with him, common law, not legally married, is he breaking the law? I have heard people argue that if a man has 2 wives, even if they consent, they can't actually consent because the man is exerting power over them. What if a woman has 2 husbands. Should that be viewed the same?