The police and the National Guard are between a rock and a hard place.
They try to keep it contain without too much force, knowing that it they overreach, the riots will gain in intensity and perhaps even spread.
Once Trump is elected and we have leadership at the top, the situation will change.
Knowing they have support at the very top, the police can clamp down hard and if it spreads or gains intensity, the police and NG will just clamp down harder.
This is all Obama's doing. He's still agitating.
Spot on analysis.