Comedian-turned-politician Al Franken is now a senator. The Minnesota Democrat was sworn in Tuesday, ending an eight-month political and legal struggle. He gives the Democrats 60 votes to thwart possible Republican filibusters. Vice President Joe Biden administered the oath. Former Vice President Walter Mondale accompanied Franken. The Minnesota Supreme Court ruled in Franken's favor after a protracted recount. His opponent, former Republican Sen. Norm Coleman, then conceded. Franken took the oath on a Bible that belonged to the family of the late Sen. Paul Wellstone, D-Minn.Watch It: