The former president, who is running for his former office, invites to his home one of the most notorious antisemites in the United States, who brings along a well-known Holocaust denier. So far, to my knowledge, the only member of Donald Trump’s cabinet to publicly condemn his former boss by name is Mike Pence. Nor, with a handful of exceptions, have top Republicans or the major organs of right-wing media, and even for them the indictment is mainly that Trump was sloppy about vetting his guest list. If he were to win again, all this would be swept under the...