Donald Trump is not an unknown commodity; he has had a prolific public persona as an incompetent, narcissistic moron for over 30 years. This is what happens when you apply that kind of personality to the White House and the U.S. government writ large.
Similarly, Steve Bannon and Stephen Miller are not secretive evil geniuses. Their inexperience at writing executive orders and failing to consult the lawyers and agencies you would normally consult is a major reason why the Muslim ban is legally vulnerable. Not to mention Bannon and Miller have made plenty of public comments over the years revealing their true feelings and prejudices.
There's no misdirection. Donald Trump is as dumb as advertised.
He's the president of the United States after countless scandals that would sink pretty much any politician. I think that is sufficient proof.
With the exception of Nixon, who resigned because he handed over (against his will) his own damning evidence, presidents aren't really sunk by scandal. They may lose re-election, or cost elections for their party. But they otherwise aren't forced out. Certainly not in, like, the last century.