Photos from Donald Trump's rally in Costa Mesa, California(19 images)

Republican presidential front-runner Donald J. Trump held a rally at the Pacific Amphitheatre County Fair & Event Center in Costa Mesa, California on April 28, 2016, one day after pledging to pursue an "America first'" foreign policy.

Police later arrested 20 people after fights broke out and a police car windshield was smashed amid anti-Donald Trump protests following the rally.

Supporters await Republican presidential front-runner Donald J. Trump's address to a rally at the Pacific Amphitheatre County Fair & Event Center in Costa Mesa, California on April 28, 2016, one day after pledging to pursue an "America first'" foreign policy. Photo by Jim Ruymen/UPI | License Photo
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