Strong police presence plus the National Guard will also be there. The dreadlocks and poncho crowd are playing keyboard commando on this one. If they show up... weather permitting I seriously doubt any problems would occur or would be of long duration.
Look for terror attacks on the parade—maybe even gunshots—or truck rammings—or even knife attacks. This might be the worst terror attack since 9-11. CIA might look the other way as they seem to hate Trump (or the Obama people at the top do) I would not be surprised if some “star” takes a shot at Trump hoping to “Save the Nation form the new Hitler” Things have gotten that bad. They must be on their guard this time. They may Burn Washington and the White House.
We must be ready for anything—because anything can happen.