“Proud to marry Brian and Joe at my house,” he wrote. “Couldn’t be happier, two longtime White House staffers, two great guys.”
Mosteller is director of Oval Office operations, though a Washington Post profile described him as the “anticipator in chief” who caters to the president’s logistical needs.
Remarkably for a guy who has spent decades in public office, it was the first wedding that Biden has officiated at, his office said in a statement, and he got a temporary license for the D.C. government to seal the deal.
Biden first endorsed same-sex marriage in 2012 — before President Obama, a supporter of civil unions, similarly “evolved” on the issue.