Republican senators have sounded the alarm on the Biden administration's border policies after Border Patrol agents caught illegal border crossers who were carrying explosive devices that Sen. John Barrasso (R-Wyo.) said were "tailor-made for terrorism." Mr. Barrasso, who is the Senate Republican Conference Chairman, made the startling revelation at a press conference on Oct. 31, alongside Sens. John Cornyn (R-Texas), Ted Cruz (R-Texas), and Pete Ricketts (R-Neb.), following their recent visit to the U.S.–Mexico border.