Proud to marry Brian and Joe at my house. Couldn't be happier, two longtime White House staffers, two great guys.

Vice President Joe Biden officiated a same-sex wedding Monday, marrying two White House staffers at the vice presidential residence in Washington, DC.

Biden tweeted a photo of himself performing the wedding. Biden's office said in a statement to BuzzFeed News that the wedding between Brian Mosteller and Joe Mahshie took place Monday at 4 p.m.

It was the first time Biden had performed a wedding and came after Mosteller and Mahshie asked him to officiate. The vice president obtained a temporary certification from the District of Columbia for the ceremony, his office said.

Mosteller is the director of Oval Office operations and in February was the subject of a Washington Post profile that touted his ability to "basically read President Obama’s mind." According to Mahshie's LinkedIn profile, he is a trip coordinator for Michelle Obama.



The men were married in a small ceremony attended by family members.