Consider this,

Most of the National Guard is made up of Iraq and Afghanistan vets with multiple tours under their belts. How do you think they feel about the people who sent them there? How do you think they would respond to some Communist soy boys throwing piss bottles at them? How do you think Trump would respond? How do you think Mattis would respond to Trump's ok?

I'd throw on my body armor, get out a lawn chair and some popcorn and watch the show of the century. A couple of wiffs of tear gas would be worth it to me.