Ann Coulter waves to the audience after speaking at the Conservative Political Action Conference in Washington in February 2011. University of California, Berkeley, students who invited Coulter to speak on campus filed a lawsuit April 24, 2017, against the university, saying it is discriminating against conservative speakers and violating students' rights to free speech. Campus Republicans invited Coulter to speak at Berkeley on April 27, but Berkeley officials informed the group that the event was being called off for security concerns.  (Cliff Owen/AP)
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