The top Republican on the House subcommittee responsible for funding the Department of Homeland Security demanded that the Trump administration end its forced separation of parents and children at the U.S. border, going further than many of his congressional colleagues in his demands.

Rep. Kevin Yoder (R-KS), the chairman of the House Appropriations Committee’s subcommittee on Homeland Security, sent a letter to Attorney General Jeff Sessions calling for him to end the controversial policy.

“I ask that you take immediate action to end the practice of separating children from families at the border,” Yoder says in the letter. “Separating children from their parents should not be used as a deterrent.”