"FEAR: Trump in the White House" by Bob Woodward
The President implies that anyone with whom he disagrees can't be trusted, including the FBI, the CIA, the court system, the press, individual politicians, etc. He refuses to recognize the plight of foreigners seeking refuge from threatening countries, categorizing many of them as criminals. He prefers to put his faith in questionable foreign leaders rather than American institutions. He wants to change trade and arms agreements via questionable arbitration. He has granted huge tax cuts to the wealthy and corporations while pushing for cuts in critical social programs. His comments frequently defy the proven truth.
This country needs to be concerned. This is a President who seems more aligned with dictatorship than democracy.
Impeachment? No, because that only encourages the public to believe the Vice President has a more reasonable political philosophy. He doesn't, and the public runs the risk of having him for two consecutive administrations.
The answer comes with the next Presidential election, and the time to start thinking about it is now.