Protesters gather at California Republican Party convention

A protestor is detained following a scuffle with law enforcement at the California Republican Convention on April 29, 2016.

Protesters clash with police outside the hotel hosting the California Republican Convention in Burlingame on April 29, 2016.

Presidential candidate Donald Trump speaks at the California Republican Convention on April 29, 2016

Protesters clash with police outside the hotel hosting the California Republican Convention in Burlingame on April 29, 2016.

Trump protesters clash with police outside the California Republican Convention in Burlingame on April 29, 2016. (Marcus Yam / Los Angeles Times)

An anti-Trump protester dressed in a costume meant to parody Captain America watches as police hold a skirmish line at the California Republican Party convention in Burlingame in April 29, 2016.

Trump protesters are blocked by police outside the California Republican Convention.

Republican presidential candidate Donald Trump speaks at the California Republican Convention in Burlingame on April 29, 2016.

Cheryl Ann McDonald, left and Carolyn Mary Gibbs, both from Discovery Bay, stop for a photo at the start of the California Republican Convention.

Donald Trump protesters clash with police outside the California Republican Convention in Burlingame on April 29, 2016.

a Trump protester outside the California Republican Convention, in Burlingame.

Republican Presidential candidate Donald Trump speaks at the California Republican Convention in Burlingame.

Trump protesters fill the streets outisde the California Republican Convention.

Trump protesters link arms and block the streets outside the California Republican Convention.

A Donald Trump supporter is surrounded by Trump protesters as he makes his way toward the California Republican Convention, in Burlingame on April 29, 2016/

Rabia Keeble hugs a Donald Trump piñata during a protest outside the California Republican Party convention in Burlingame.

Members of the Monterey County Republican Party play a game called Delete Hillary at the state GOP convention in Burlingame.

Trump protesters gather outside the California Republican Party convention in Burlingame.