MSNBC Live with Tamron Hall 09/28/16

Did Trump trivialize national security on the debate stage?

Trump mentioned a hypothetical 400-pound hacker and his son's gaming habits when answering questions about national security during his first debate with Hillary Clinton. Did he undermine one of America's more pressing concerns? David Avella, a Trump surrogate, joins MSNBC's Tamron Hall to discuss. ... more Duration: {{video.duration.momentjs}}