Donald Trump’s allies praised him for his discipline during his announcement speech, when he mostly stuck to the script as written by his staff. Then, within about a week, he was embroiled in an anti-Semitism controversy. Could anyone be surprised? Trump’s brief bouts of care about what he says and does, usually involving reading from a Teleprompter, are always parentheses in an ongoing story of chaos, wackiness and unnecessary firestorms. The larger meaning of the controversy isn’t about the normalization of anti-Semitism. The condemnation of Trump’s instantly notorious dinner with two anti-Semites, one world famous (Ye, better known as Kanye...