I missed this comment a week ago.
OBVIOUSLY, a Court which follows its own precedents in Casey v. Planned Parenthood, Lawrence v. Texas, and especially Romer v. Evans will have to legalize polygamy, IF they ever agree to hear a case.
I suspect that, given the fact that such a decision will have the potential to reduce their power permanently, that they will not grant cert to any polygamy cases, at least not in the near future.