OPINION: Mitt Romney: The president shapes the public character of the nation. Trump’s character falls short.

The Trump presidency made a deep descent in December. The departures of Defense Secretary Jim Mattis and White House Chief of Staff John F. Kelly, the appointment of senior persons of lesser experience, the abandonment of allies who fight beside us, and the president’s thoughtless claim that America has long been a “sucker” in world affairs all defined his presidency down.