According to various news outlets Biden obtained a temporary certification from the District of Columbia after the two grooms asked if he would perform the ceremony for them before a small gathering of immediate family members.
In a tweet, Biden said he "couldn't be happier" to marry two longtime White House staffers, Brian Mosteller, director of Oval Office operations for President Obama, and Joe Mahsie, a trip coordinator for first lady Michelle Obama...
Following the ceremony, Dr. Jill Biden, the second lady, exclaimed, "Love is love!" in a tweet.
Vice President Biden is widely credited with forcing the White House's embrace of same sex marriage when he first endorsed the practice on NBC's "Meet the Press." in May of 2012
"I am absolutely comfortable with the fact that men marrying men, women marrying women and heterosexual men and women marrying one another are entitled to the same exact rights, all the civil rights, all the civil liberties,"
Many believe this forced President Obama's hand when just a few days later he echoed his vice president sentiments.