In modern times, presidents have rarely been church mice afraid of a little salty language. But President Donald Trump has grown increasingly willing in recent months to say in public what most of his predecessors tried to keep behind closed doors.

His is the profanity presidency, full of four-letter denunciations of his enemies and earthy dismissals of allegations lodged against him. At rallies and in interviews, on Twitter and in formal speeches, he relishes the bad-boy language of a shock jock, just one more way of gleefully provoking the political establishment bothered by his norm-shattering ways.

In a single speech