New Jersey's senior senator is soon going to be making another vow, this time of marriage. U.S. Sen. Cory Booker announced on social media on Tuesday that he is engaged to his girlfriend, Alexis Lewis. In a post that included photos of his fiancé flashing her ring, Booker wrote he is "savoring the soul-affirming wonder of everyday life with my partner, best friend, and now my fiancée." View this post on Instagram A post shared by Cory Booker (@corybooker)