Planned appearances by Ann Coulter, Milo Yiannopoulos and now Ben Shapiro have sparked controversy, protests and threats of violence on the UC Berkeley campus.
Shapiro is set to speak on campus Thursday -- so who is he?
Watch the video in the player above to learn more about the conservative political commentator.
RELATED: UC Berkeley plans extreme security ahead of Ben Shapiro speech
VIDEO: Who is Ben Shapiro?
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