The Breitbart editor had signed a $250,000 book deal in December with Threshold Editions, an imprint of Simon & Schuster, but the publisher announced on Monday that it halted plans for the book, after “careful consideration,” according to Publisher’s Weekly . Yiannopoulos, who also appeared on Real Time With Bill Maher last week to discuss his views on Hollywood liberalism, was disinvited from this week’s Conservative Political Action Conference, known as CPAC, where he was supposed to deliver the keynote address.