It's downtown moonbat central.
They had to anticipate that this would happen.
hussein needs blood in the streets and cities in flames before the election.
The protestor crowd was mostly young & white. Evidently, the normal Chicago gang bangers had enough sense to stay away. They had a few gang bangers as lookie loos, but they had no bone in this fight.
I guess the Trump people didn’t anticipate that the university would be used as an anti-Trump rallying stage. They met on the campus to start the protest.
But you are right some Black Lives Matter were also there with guns.
Trump Rally - MAC-10 “Assault Weapon” Fired by Black Lives Matter Protester in Chicago Streets
https://www.youtube.com/watch?v=cW_wNGite3c
Trump said he would not avoid campaign rallies in ethnic areas
( paraphrasing)
See how it goes today
Cincinnati,tomorrow they have not cancelled but are looking for different venue
Some of these big stadiums and what not might be intimidated to not allow Trump rallies over liability concerns
And if it happens, Trump should vociferously blame him for it.