In yet another act of gross exaggeration, Donald Trump’s newly-appointed convention manager Paul Manafort accused the Cruz campaign of engaging in “Gestapo tactics” to win GOP delegates. Let’s, if possible, put aside how loathsome it is that the Trump campaign would accuse another Republican of doing anything close to what Hitler’s secret police did to the Jews. Trump ought to consider what his own campaign is doing. Whose campaign is charging Cruz with false crimes at every opportunity? That would be Trump’s. Whose convention manager says angry voters should “visit the hotel rooms” of delegates who may not support Trump...