For the 502nd time Trump is responsible for who he selected and was an absolute fool to play into Preibus' hands. Yes indeed, Ronna was another great Trump choice! 
Projection: When you make the (often flawed) assumption that those who surround you who claim to be on the same team are actually working with you, and not working against you. It's like making the assumption that the CDC FDA NIAID all existed to actually do something to stop diseases and not line their pockets at the expense of millions of lives.
Trump's biggest mistakes:
Thinking that the GOP would work with him to clean up DC when they are part of the problem.
Trusting entrenched Party 'advisors' to be on board and not give him swamp critters for appointment lists.
Failure to critically review the pronouncements of the CDC/FDA/NIAID/ COVID bunch in light of suppressed material.
Believing (as did most Americans) that the CDC/FDA/NIAID et. al. were acting in the best interests of the American People (and humanity everywhere), evenly and scientifically evaluating all possible treatments and courses of action instead of censoring successful treatments to push through dangerous injections as a "vaccine" which did not work, were experimental, ill tested, and as it turns out potentially dangerous. Millions died unnecessarily, and NO ONE wanted to believe that these charlatans would put profit and power above humanity, despite history being loaded with people who have done just that.
That it could and did happen here was unthinkable--and that his VEEP would be at the head of that 5th column was even more unlikely in the minds of the average American.
Trumps biggest mistakes involved hiring the wrong people and not firing them fast enough. Even the effing military was pulling stuff behind his back (Milley on the phone with the Chinese stating to a potential enemy that he would stop a strategic launch or at least give them a half hour notice--TREASON!.)
