https://www.realclearpolitics.com/articles/2019/11/05/the_democrats_high-risk_g
The Democrats’ activist base considers Donald Trump fundamentally unfit to hold office. Their impeachment drive is really about this damning judgment, not about any specific act such as withholding Ukrainian aid or wanting to fire Special Counsel Robert Mueller. They say Trump is erratic, narcissistic, self-serving, and unforgivably gauche. He cozies up to dictators and would like to become one himself. Every day, he tramples the presidency’s historic norms. Surely the voters who put him there made a catastrophic error, or, rather, the antiquated Electoral College did. In short, Trump is not just a bad president — the worst in modern history — he is an illegitimate and dangerous one, at home and abroad.
Their harsh view is no masquerade. It is sincere, deeply held, and shared by most elected Democrats. Many, perhaps most, career civil servants agree and consider the president only nominally their boss. That’s why they consider it their constitutional duty to hold him in check. That’s why former heads of the CIA openly praised the “Deep State,” why former FBI Director James Comey wanted his agents to monitor the president in the White House itself. If that means targeting Trump and his key aides for disguised FBI interviews or leaking classified phone calls, so be it. The fight over the Deep State is partly about this profound distrust of Trump (and his distrust of them) and partly about the president’s rising opposition to a century of progressive legislation, executive orders, and court decisions, which grant extensive power to government bureaucrats.
This revulsion is the backdrop to the Democrats’ impeachment effort and the earlier appointment of a special counsel. The crucial point is this: Democrats see the actions they have investigated for three years less as specific crimes and more as steadily accumulating evidence of Trump’s unfitness for office and his repeated violation of his oath, as they understand it. “Democrats of all stripes look at Donald Trump’s business and personal history and see a man who serially does not follow laws and therefore should not be president,” said one well-informed Democrat. For his party, “Ukraine is a big deal because it confirms this view.”