The letter comes one week after Biden sent a supplemental request to Congress to hire additional law enforcement personnel and implement stronger security at the border.
A senior House Republican has suggested that a border rancher sue the Biden administration for how the federal government has turned his property into a dumping ground for unused border wall materials.
Republican leadership in the House put the brakes on immigration and border legislation that had been scheduled to go through the Judiciary Committee for mark-ups next week after monthslong delays.