Missouri Republican Sen. Josh Hawley dropped some disturbing news given to him by a Secret Service whistleblower regarding former President Donald Trump’s security detail for his Butler, Pa., rally last week following the unsuccessful assassination attempt.

In an interview with Fox News host Sean Hannity, Hawley said he had been informed that many members of the security team were not even Secret Service agents but officers with the Department of Homeland Security’s investigative services.

“I can tell you, Sean, I saw it today ahead of the Senate committee hearings on this. I went to go see myself. I went to the grounds. I went to the site because frankly, I don’t trust the FBI and the Secret Service to give us the real story. I want to see it myself,” Hawley said.

“That roof, it’s hardly pitched at all. It’s at a slight slant, and I’ll tell you this, Sean, I couldn’t believe how close it is to where Trump was. I stood right where Trump stood, looked over at that building. I mean, it is 100, 150 yards max. It is a clear line of sight from where President Trump was to that building,” he continued.

“And the whistleblower, Sean, what they have told me is unbelievable. It’s that they were not patrolling the perimeter with K-9s as they were supposed to do. They were not patrolling the crowd. They weren’t adequately keeping the area around the stage safe,” the GOP senator added. “And, of course, we know that they didn’t have eyes on that roof and that building. It’s unbelievable.”

He then described what he was told regarding Trump’s security detail.

“Well, one thing is that most of the detail assigned to Trump that day into that rally were not Secret Service, that most of them were from other federal agencies including Homeland Security,” Hawley said.

“And, Sean, they weren’t prepared. They didn’t know what the procedures were. They did not have the site locked down. They were not adequately patrolling the perimeter. As you just said a moment ago, they were leaving huge gaps. Whistleblowers also tell us that they were allowing people to come into the grounds who weren’t checked. They weren’t monitoring who was getting up around the stage,” he added.”

One other thing, Sean, whistleblowers tell me that law enforcement were actually on different channels, different radio communication channels there were multiple different channels and they weren’t coordinated. Sean, it’s a — it’s a total disaster. Somebody needs to resign for this,” Hawley said.