"Madison thought impeachment 'indispensable...for defending the Community against the incapacity, negligence or perfidy of the chief Magistrate. The limitation of the period of service was not a sufficient security. He might lose his capacity after his appointment. He might pervert his administration into a scheme of peculation or oppression. He might betray his trust to foreign powers' "
--fr. High Crimes and Misdemeanors by Frank Bowman

Btw peculation is stealing or otherwise misappropriating something to yourself, esp. public funds or property that you have been entrusted with.

You should have known when Trump
     flogged a ridiculous theory abt Obama's birth
     was forced to close down his "university" and foundation because of corruption
     mocked a disabled reporter and tagged his primary opponents with schoolyard epithets
     encouraged violence against counter-demonstrators at his rallies
     appointed to high office person after person who had to resign because of corruption
     has continually demonstrated his ignorance of government, history, and world geography
     said he believes Putin more than he believes his own national security people
     from the beginning of his presidency, insulted allies and praised authoritarians
     has lied daily abt all manner of things, momentous and trivial
Now here we are and you should have known.
     

However much our fellow citizens abhor Trump's action in Syria, there hasn't been talk of its being impeachable.  But I think it should be.  In Frank Bowman's book High Crimes and Misdemeanors, he recounts the history of impeachments in Britain and in the American colonies that the framers would have drawn on and says this:  "Another persistent thread in British impeachments is the charge that the impeached minister had pursued a policy at odds with the nation's basic foreign policy interests."

In my view of life, the concept of honor has had little place.  The truly moral actions dictated by a sense of honor generally can be reasoned to by other ethical routes.  And the actions recommended by honor alone are, by my lights, often morally suspect.  However,  DJT's abandoning the Kurds, good and faithful allies, to death and possible ethnic cleansing, I think, I feel, has stained my country's honor.