Any question about the mind-set guiding the administration should have been put to rest by President Trump’s icy explanation to reporters earlier this month for why he was barring residents of the hurricane-battered Bahamas from taking refuge in the United States.

“I don’t want to allow people that weren’t supposed to be in the Bahamas to come into the United States, including some very bad people and some very bad gang members, and some very, very bad drug dealers,” he said. He offered not a shred of proof of any such danger, while the shattering evidence of Bahamians’ needs still lies everywhere.

The limit announced by the State Department on Thursday is far below the 110,000 refugees a year that President Barack Obama said in 2016 should be let in. Most of the 18,000 slots, moreover, are already filled by Iraqis who worked with the American military, victims of religious persecution and some Central Americans. That would leave only 7,500 slots for families seeking unification, like parents of Rohingya children who have already been admitted.

The proffered reason for the cut was the huge backlog in immigration courts as the number of people seeking asylum is expected to reach 350,000. Most refugees trying to enter the United States, though, have already been cleared. So it’s not immediately clear how lowering the annual limit will help ease the backlog.

There are enormous backlogs, and the United States cannot let in everyone who wants to come. But the severity of the cutbacks makes clear that the administration’s rationale hides its real motive: to score political points with a base of voters fearful of immigration by seeming to keep out as many people as possible.