While most members say they’ll provide more resources if the president asks, they also point out that there’s not much they can do on the legislative front.

Sen. Jon Tester (Mont.), a moderate Democrat, says he doesn’t know what Congress can do immediately to address the surge of migrants at the border, many of them unaccompanied children.

“I don’t know you need legislation. I think what we need is to make sure we get the people and the technology down there to stop it,” he said.

“We also need to work with the other countries to make sure that they’re not sending folks up,” he said. “That’s how I would approach it.”