Nobody can keep up with Trump's lies. By the time one lie is confronted, he's already lied five more times. I think he has found the Achille's Heel of democracy: Lie your ass off and never stop. As Joseph Goebbels instructed Hitler, lie and never back down, eventually the lie will be believed.

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“If you tell a lie big enough and keep repeating it, people will eventually come to believe it. The lie can be maintained only for such time as the State can shield the people from the political, economic and/or military consequences of the lie. It thus becomes vitally important for the State to use all of its powers to repress dissent, for the truth is the mortal enemy of the lie, and thus by extension, the truth is the greatest enemy of the State.” --Joseph Goebbels, Nazi Propaganda Minister