Sen. Al Franken (D-Minn.) has a famous sense of humor, one that, in a previous life, served him as a Saturday Night Live comedian. Now Franken has become one of the most merciless Democrats in the Senate, holding President Trump and his appointees accountable — even when they're friends. As Franken writes in his new book, jokingly titled Al Franken: Giant of the Senate, he has made an effort to extend a hand across the aisle.