Senator Ron Johnson has criticized the Secret Service and FBI for their slow response in the Senate's bipartisan investigation into the attempted assassination of former President Trump. He claims the agencies are 'stonewalling' the inquiry, providing heavily redacted documents and delaying access to important information. Johnson emphasized that the agencies seem to operate above the law and are not fully cooperating with Congress. He expressed concern that their actions are fueling conspiracy theories surrounding the investigation, particularly regarding the handling of the body of the would-be assassin, Thomas Matthew Crooks. The senator has sent multiple letters to key officials, including Attorney General Merrick Garland and FBI Director Christopher Wray, requesting necessary documents and briefings. Johnson's remarks come as the investigation continues to face significant hurdles due to the agencies' lack of transparency.