The term tear gas is consistently being used, it was smoke and pepper spray..the so called peaceful protestors did not disburse when ordered to, attempts to burn the church the previous nite did not do much damage but with protestors refusing to move and in the immediate vicinity, the turn from peaceful to riot possibility very present. My feeling is that this kind of behavior should have met force days before. The optics of the President walking was good...the Bible overkill.
I think Trump, although I do not approve of all his actions, has been one of the best Presidents I've seen to try to get things straightened out in the country's best interests. Taking into account the obstacles he's faced, remarkable.