MSNBC Live with Tamron Hall 08/26/16

McCain Senate challenger calls him out on age, health

John McCain is fighting for a 6th Senate term while enduring stinging attacks from his primary challenger, Kelli Ward. NBC’s Kelly O’Donnell reports on that primary race, as well as news that the Donald Trump campaign has acquired fired Christie aide Bill Stepien. ... more Duration: {{video.duration.momentjs}}