Six Democrat veterans in Congress release 'Don't Give Up the Ship' video telling military members they can refuse unlawful orders from commanders.

President Donald Trump accused six Democratic lawmakers of "seditious behaviour, punishable by death", after they released a video urging US service members to refuse unlawful commands.

Sen. Elissa Slotkin, one of the senators in that video, joins Chris Hayes to respond.

Democrats urged members of the military to refuse illegal orders — something President Trump called “seditious.”