Someone else mentioned, the state of giddy omnipotence amongst Trump and his people between Election Night and Inauguration Day was palpable, but also remember this–the assholes at the NYC branch of the FBI practically led an uprising against Comey during the summer and fall of 2016, while working hand in glove w Giuliani. When Comey at least temporarily lost his nerve and demonstrably benefited Trump w his statements, Trump may have believed he owned the FBI, and that they would never challenge him.
I’d like to think Trump was wrong, and that turnabout is fair play, but it has been a very near thing.