On the 9th of November, protesters marched on Trump Hotel at least three separate times. The first march started at the White House and marched to Trump Hotel chanting "No Trump, no KKK no racist USA." A second, equally large march arrived from U before that first massive siege of the hotel could entirely disperse, and contained some militant activists. One group burned the US flag, which will be the flag of Donald Trump after Jan 20. Shortly therafter someone threw a paint projectile, scoring a direct hit on the building.
Updates Nov 10:Twitter reports indicate a Black Lives Matter organizer not involved in the flag burning, paint projectile, or any other such incident was assaulted by a "rogue" police officer. Also report in Washington Post of flags burned in protest at American University, no reports of police violence there.
Video showing both marches approaching, then the flag burning and paint hit