Kasich just took a jab at Trump in the media, (something about sowing the seeds for those Chicago protests) and usually he stays out of that stuff, so maybe its an indication that there is some jockeying going on behind the scenes for VP, and he isnt looking good.
Also, some things arent being mentioned in the media right now, from the UIC protests. Multiple cops hurt, a few needing to get patched up/stitches. "Protesters" were going through the adjacent parking garage, smashing the windows out of any car that had a Trump sticker. Protesters were hurling bottles/rocks at police and Trump supporters on the street, and protesters walked down the highway ramp and blocked the expressway (this is a major expressway, heading east/west right into downtown Chicago and is 1 mile east of downtown...so you can imagine how fucked the traffic would be).
Yes, there were paid protesters as well. CPD saw the usual suspects there.