https://www.theguardian.com/film/2017/jun/07/michael-moore-trumpileaks-whistleblowing-donald-trump
He also has a new documentary coming up soon: https://www.theguardian.com/film/2017/may/16/michael-moore-donald-trump-documentary-fahrenheit-11-9
“No matter what you throw at him, it hasn’t worked,” Moore said. “No matter what is revealed, he remains standing. Facts, reality, brains cannot defeat him. Even when he commits a self-inflicted wound, he gets up the next morning and keeps going and tweeting. That all ends with this movie.”
Fahrenheit 9/11 made $222m worldwide and remains the highest-grossing documentary of all time.