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There was a time in the not too distant past when the authorization of same-sex marriage was squarely a blue-state phenomenon. The 2012 presidential election map looked pretty similar to the same-sex marriage map—with all 17 authorizing states colored blue. But the color palette is changing, as first Utah, then Oklahoma, then Kentucky, and now Texas, in De Leon v. Perry have seen at least some aspects their anti same-sex marriage rules invalidated by federal courts. The red states are unlikely to fall in as rapid succession as the blue states did, but, still, crossing the color line suggests the inevitability of change on this issue—and only in one direction.