On Sunday, Roberts Tweeted a photo of his wedding ring and wrote, "Morning in NYC is pretty sweet waking up as a married man!"
He also proudly changed his relationship status on Facebook from "engaged" to "married."
The ceremony held special significance, as Roberts was the first national TV anchor to come out while he was on CNN and is the first cable news anchor to marry his same-sex partner.
The wedding was officiated by former San Francisco Mayor and current Lt. Governor of California Gavin Newsom, who has been one of the leading supporters of gay marriage.
Also among the notable attendees were country star Chely Wright, who performed a special song for the couple, and MSNBC colleagues president Phil Griffin, and anchors Tamron Hall and Chris Jansing. Also in attendance were Good Morning American's Sam Champion, Talk show host Nate Berkus and reality star Carson Kressley, according to TV Newser.