All three are due to speak at Berkeley despite previous protests about alt-right speakers.
“We want people to understand who the key players are and what they truly represent,” Jonathan A. Greenblatt, ADL’s CEO, said in a statement.
The provocateur’s underage-sex comments led to his losing his book deal, speaking gig and Breitbart platform.
In an online interview, Yiannopoulos made light of child abuse.
Trump's threat in a tweet provoked a response from California lawmakers, who in discussions on the floor of the state senate called it distasteful and an abuse of power.
The campus was put on lockdown as hundreds of protesters demonstrated against Yiannopoulos’ scheduled talk.
The “Bad Feminist” and “Difficult Women” author pulled her forthcoming “How to Be Heard” from Simon & Schuster for giving Yiannopoulos a platform.
The conservative journalist was said to be orchestrating abuse against the “Ghostbusters” star.
Breitbart and The Federalist, among others, declined to speak to Zuckerberg tomorrow to discuss allegation that Facebook censored conservative news.