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Watch Trump’s co-author reveal the secret to Trump's cruelty

08:05

Trump’s ‘Art of the Deal’ co-author Tony Schwartz says a big danger with Trump is he drags everyone, not just his allies, towards being more cruel — but that can be fought. Schwartz notes values like truth and compassion are “what binds us together as a civilized society” and with neither being represented in Trump it causes us to lose “trust in one another”.