Steve Schmidt worked with John McCain and, therefore, Sarah Palin. So, in calling Trump an incompetent idiot, he is a reverse Lloyd Bentsen in his ability to ID Trump as being the same as someone he's worked with.
These words are not hyperbolic. If you do not believe this, you are way behind on reality:
A moment of unparalleled national humiliation, of weakness — when you listen to the President, these are the musings of an imbecile, an idiot. And I don't use those words to name-call, I use them because they're the precise words in the English language to describe his behavior, his comportment, his actions.
— Steve Schmidt, former GOP strategist