Several hundred protesters have gathered near a Burlingame, California, hotel where Donald Trump will address the state GOP convention.
Dozens of protesters have broken through steel barricades surrounding the hotel.
The protesters are also throwing eggs at police and chanting anti-Trump slogans Friday. Many other protesters remain on the sidewalk.
Dozens of officers have formed a human chain around the hotel entrance and driveway and are standing shoulder-to-shoulder in riot gear in an attempt to keep demonstrators out of the venue.
Trump entered the convention from an access point behind the hotel, avoiding protesters.
The diverse crowd is otherwise carrying signs and banners at the event near San Francisco International Airport.
On Thursday night, Trump supporters and opponents got into confrontations outside a Trump rally in Southern California and raucous protesters damaged police cars.
