A rational response would be to add substantially to the approximately 350 immigration judges, who cannot handle the tens of thousands of asylum claims flooding the immigration courts annually. The administration this year hired a few dozen new judges, a fraction of what is required. As the caseload has more than quadrupled since 2006, the number of judges has not even doubled, according to congressional testimony in April by Judge A. Ashley Tabaddor, president of the National Association of Immigration Judges.

Despite that, Mr. Trump has sneered at the idea of hiring more, even after aides pressed him to do so. “Who are these people?” he raged, before suggesting darkly that adding many new judges would somehow corrupt the system. “Now can you imagine the graft that must take place?” he said.

Granted, the hiring could be challenging, in vetting and cost. But any major challenge involves scaling up resources and personnel, and it’s hard to see why that’s beyond the government’s capabilities.