Chris Christie's Aggressive Attack on Donald Trump

Andrew Weisman: It's fascinating seeing Republicans running for office starting to tell the truth about Donald Trump. He says Chris Christie has been throwing some major truth bombs as he launches his campaign. Mike Pence launched his bit for the White House and made the announcement during a rally outside Des Moines, Iowa yesterday afternoon; it happened on his 64th birthday. The former vice president said that anyone who puts themselves over the Constitution should never be President of the United States again.