Sen. Elizabeth Warren (D-Mass.), often a critic of conservatives, defended Ann Coulter's right to speak at University of California-Berkeley.

Warren shook her head when CNN's Jake Tapper recalled former Gov. Howard Dean (D-Vt.) telling Coulter she had no right to spread "hate speech" in public.

Hate speech is not protected by the first amendment. https://t.co/DOct3xcLoY — Howard Dean (@GovHowardDean) April 21, 2017

Coulter's speech was blocked by the university over safety concerns following rioting that took place when fellow conservative Milo Yiannopoulos tried to speak there.

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"Look, Ann Coulter has just gotten a much bigger platform because someone tried to deny her a chance to speak," Warren said.

"My view is, let her speak and just don't show up," Warren said.

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