WASHINGTON — The U.S. Supreme Court won’t duck the issue of same-sex marriage the next time a case comes to the court, Justice Ruth Bader Ginsburg says. The 81-year-old Ginsburg said in an interview with The Associated Press on Thursday that she expects a same-sex marriage case to be heard and decided by June 2016 — and possibly a year earlier. Attitudes have changed swiftly in favor of same-sex marriage, which is now legal in 19 states and the District of Columbia, Ginsburg said in her wood …