EAGLE PASS — After a fact-finding visit to Gov. Greg Abbott’s buoys blocking the Rio Grande, a congressional delegation led by U.S. Rep. Joaquin Castro blasted the anti-immigrant barrier as an absurd and dangerous political stunt. At a meeting with reporters, Castro — a San Antonio Democrat — called on the Biden White House to “end all cooperation between Customs and Border Protection and the Texas Department of Public Safety” until a suit by the Justice Department demanding Abbott take down the barrier plays out in court. Abbott, a Republican, installed the buoys in June as part of Operation Lone Star, a $4.4 billion anti-immigrant crackdown that’s he’s made a key part of his political brand.