Seen before Re “Pierre Poilievre is pretending he doesn’t know how his job works because it makes it easier” (May 18): Pierre Poilievre’s attacks on the press are addressed, and it is contended that he’s “teaching the receptive public to automatically distrust anyone critical of him.” We should look south of the border to see where he has borrowed this odious strategy. When Donald Trump was asked why he keeps attacking the press, he said, “I do it to discredit you all and demean you all so that when you write negative stories about me no one will believe you.”...