Former President Barack Obama has criticized Republicans who continue to attack same-sex marriage, six years after the Supreme Court legalized it nationwide. Obama spoke Saturday at a campaign event for former Gov. Terry McAuliffe, just days after McAuliffe’s Republican opponent, Glenn Youngkin, said he opposed marriage equality. In an interview last week with the Associated Press, Youngkin spoke of his Christian faith and said he doesn’t support same-sex marriage, instead describing it as “legally acceptable.” “Are we still arguing about gay marriage? Really?” Obama, the first sitting president to publicly support gay couples having the right to marry, said during Saturday’s event at Virginia Commonwealth University. “I thought that ship had sailed. I thought that was pretty clearly the right thing to do.” The former president also urged voters in Virginia to support McAuliffe in the Nov. 2 election, issuing a veiled warning that a Republican win would “damage” the state.