Another very real threat could have been heat-related health issues requiring an EMT or ambulance. It was at least 90 and sunny. I head people walked 3 miles from the blockade to get to the rally.
As an aside, I think this is a direct result of the laissez faire attitude by the media, GOPe, the other candidates, and CHicago PD towards the Chicago thugs...In Chicano, the thugs blocked the expressways and roads after the rally—not before. They are getting more bold.
Also, they apparently are traveling around country following Trump.
So why don’t stalking laws apply ?