Trump's use of National Guard sets up a legal clash testing presidential power

A national security law expert describes the legal hurdles President Donald Trump faces as he plans to send National Guard troops to other Democratic-led cities like Chicago and Portland, Oregon. (AP Video by Nathan Ellgren). Subscribe: http://smarturl.it/AssociatedPress Read more: https://apnews.com​ This video may be available for archive licensing via https://newsroom.ap.org/home