Asked if he thought such walls work, he said flatly, “No.”

The new construction was announced in June, but the funds were appropriated in 2019 before the Democratic president took office. Biden said he tried to get lawmakers to redirect the money but Congress refused, and the law requires the funding to be used as approved and the construction to be completed in 2023.

“The money was appropriated for the border wall,” Biden said. “I can’t stop that.”

Is that supposed to be something very damning?