You can now offiically call him Senator Al FrankenAl FrankenFriends, foes spar in fight on Trump’s Supreme Court nominee Lawmakers share photos of their dogs in honor of National Puppy Day Franken challenges witness endorsement of Gorsuch MORE.

The Minnesotan was sworn in about an hour ago by Vice President Joe BidenJoe BidenBiden: I regret not being president Biden: 'McCain is right: Need select committee' for Russia With no emerging leaders, no clear message, Democrats flounder MORE, giving Democrats a 60 seat supermajority in the Senate.

Former Vice President Walter Mondale, a fellow Minnesota Democrat, accompanied Franken to the Senate floor. Franken said earlier today that he hopes to be the "people's proxy" in the Senate.