A group of protesters attacked Donald Trump supporters who were leaving the candidate's rally in San Jose on Thursday night. A dozen or more people were punched, at least one woman was pelted with eggs and Trump hats grabbed from supporters were set on fire on the ground.

Police stood their ground at first but after about 90 minutes moved into the remaining crowd to break it up and make arrests. At least four people were taken into custody, though police didn't release total arrest figures.

The crowd, which had numbered more than 300 just after the rally, had thinned significantly but those that remained, filling about a city block near the San Jose Convention Center, were rowdy and angry.