The Last Word with Lawrence O'Donnell 08/01/16

Families of slain troops call out Trump

Gold Star families wrote a letter to Donald Trump saying his attacks on Capt. Humayun Khan's parents were "repugnant." Retired Maj. Gen. Paul Eaton, who signed the letter, joins veteran Marine Tayyib Rashid to discuss Trump as potential commander-in-c ... more Duration: {{video.duration.momentjs}}