You can now offiically call him Senator Al FrankenAl FrankenOvernight Tech: AT&T, Time Warner CEOs defend merger before Congress | More tech execs join Trump team | Republican details path to undoing net neutrality Lawmakers grill AT&T, Time Warner execs on B merger Dems press Trump to keep Obama overtime rule MORE.

The Minnesotan was sworn in about an hour ago by Vice President Joe BidenJoe BidenSenate passes stopgap funding bill, averting shutdown Senate advances funding measure, avoiding shutdown Stopgap funding bill poised to pass Senate before midnight deadline 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.