The legislation passes with an unchallenged majority, although four lawmakers registered their opposition.
The opinion in a suit she filed was the basis for federal court rulings against state prohibitions and led to a 2015 Supreme Court decision allowing same-sex couples to marry.
"We have to be as visible as possible," said one San Francisco marcher who joined a "resistance contingent" that led the city's parade.
Americans need a champion, and Clinton's own words make plain that the "progressive values” she claims regularly melt away in the face of formidable wealth, power and bigotry.
Justice Antonin Scalia earned his stripes as the court’s loosest cannon for his remarks on Obamacare and same-sex marriage, while Justice Clarence Thomas was honored for making it through his ninth year without asking a single question during oral arguments.
Because the Democratic Unionists, the largest party in Northern Ireland's devolved Parliament, exercised a voting mechanism to veto the vote, same-sex marriage backers are now expected to turn to the courts.
Pope Francis marked the end of a lengthy bishops' summit Sunday in his homily at St. Peter's Square in Vatican City.