You have decided his end goal; he has not.
"I thought there was a better way to expedite the legal flow of traffic and people," he said.
"If people have to have a passport, it's going to disrupt the honest flow of traffic. I think there's some flexibility in the law, and that's what we're checking out right now," the president said.
As I said before in summary, his goal is to expedite the flow of traffic across the border.