This assumes Sestak wins in Pennsylvania next year, but I don't think that's too far fetched of an assumption to make. Corbett is, surprisingly, one of the weakest Republican Governors out there. This map also kind of assumes Snyder and Walker win re-election, as does Christie, which leaves New Jersey the only state in the Northeast that discriminates against same-sex couples in marriage rights as of 2016. I also threw California in here because I figure the Supreme Court will ultimately just strike down the California ban and leave the rest of it in place, along with striking down the Defense of Marriage Act, which would, in theory, legalize same-sex marriage everywhere, but in practice almost assuredly won't because reactionaries control much of the United States' state and local legislatures.