The fact that they ran up on people doesnt surprise me in the least, they have been doing this kind of thing unchecked for a year and a half now. Sooner or later someone will get tired of these dumb asses and will start getting after them.
Ive been to rallies of candidates I couldnt stand, and never once did it occur to me to start running up on people, but thats the difference between civilized and uncivilized people.
Fools acting in this manner have never been held accountable for their actions, thats why they act the way they do. A well placed smack on the side of the noggin with a night stick would calm them down I bet.