Both the White House and Republican lawmakers are looking for ways to narrowly change the nation’s immigration policy to stop a massive surge in illegal immigration along the southern border.

The GOP senator leading the charge is Sen. Ron Johnson of Wisconsin, who chairs the Homeland Security Committee. Johnson told the Washington Examiner he plans to introduce legislation “shortly” after lawmakers return from a two-week recess in April that would address the way immigration officials determine who can claim asylum to remain in the United States.