Earlier this year, a national coalition of conservatives unveiled a new campaign to turn back the clock on same-sex marriage. In a promotional video, supporters of the “Greater Than Campaign” said they want to push the U.S. Supreme Court to reverse its landmark 2015 decision in Obergefell v. Hodges , which legalized same-sex marriages nationwide. The effort challenges a decade of established legal rights for same-sex couples, rights that continue to enjoy broad public support . In Washington, marriage equality protections go back even further, to a 2012 law upheld by voters. Marriage equality in Washington The road to marriage equality in Washington took decades, culminating in a 2012 law legalizing same-sex marriages. The state law came three years before the U.S. Supreme Court’s nationwide ruling that same-sex marriage bans were unconstitutional. So it might come as a surprise that one of the leading activists behind the campaign to undo those rights lives in Seattle.…