Axelrod: Pence embracing decision to go against Trump

Axelrod: Pence embracing decision to go against Trump...
Former Vice President Mike Pence has announced that he will campaign for Georgia Governor Brian Kemp. His former boss -- Donald Trump -- is backing Kemp's opponent, David Perdue -- and has made Kemp one of his prime targets for the midterm elections. CNN senior political commentator David Axelrod discusses with John Berman and Kaitlan Collins...