He's reinforcing the lie he's promoting . No collusion is a good example when he knows they did, and conspired against this country. Another he repeats is fake news all the time when he knows its the truth, and he's promoting lies to the media. He wants his supporters to not trust the truth and believe his lies instead, and he knows his propaganda won't work unless he attacks the truth, and that's why he claims fake news to them over and over again to his supporters. Propaganda tactics to divide people with , and trumpspeak is all about that, and to accuse and blame others of his actions.