My Leftist friends (as well as many ardent #Never Trumpers) constantly ask me if I'm not bothered by Donald Trump's lack of decorum. They ask if I don't think his tweets are "beneath the dignity of the office." Here's my answer: We Right-thinking people have tried dignity. There could not have been a man of more quiet dignity than George W. Bush as he suffered the outrageous lies and politically motivated hatreds that undermined his presidency. We tried statesmanship. Could there be another human being on this earth who so desperately prized "collegiality" as John McCain? We tried propriety has...