Protests of Donald TrumpDonald John TrumpTrump to fundraise for 3 Republicans running for open seats: report Trump to nominate former Monsanto exec to top Interior position White House aides hadn’t heard of Trump's new tax cut: report MORE took a destructive turn Thursday night as the presumptive Republican presidential nominee held a rally in San Jose, Calif. 

Some protesters were spotting lighting one of Trump's "Make America Great Again" hats on fire while another man was left bleeding.
An American flag was spotted on fire, while other people waved Mexican flags. Physical fights broke out between Trump supporters and protesters.
One woman wearing a Trump jersey had eggs thrown at her. Another man, reportedly a Trump supporter, was sucker punched, and police later made an arrest.