The U.S. Senate on Wednesday voted to advance a bill protecting federal recognition of same-sex marriage, prompted by concerns that a more conservative Supreme Court could reverse a 2015 decision that made it legal nationwide. The bill garnered the 60 votes required to limit debate before a final vote on its passage. It would serve as a legal backstop against any future Supreme Court action by requiring the federal government to recognize any marriage that was legal in the state it was performed.