Trump supporters attacked outside campaign rally in California

The scene outside of Donald Trump campaign rally in the San Francisco Bay Area apparently got rowdy on Thursday night.

Some anti-Trump protesters appeared to taunt people who attended the event in San Jose - at times shouting down attendees who were passing by.

One man was apparently hit in the head by a demonstrator.

That exchange was caught on video:

Others appeared to be followed by the crowd and ambushed:

Developing ...