According to new whistleblower allegations, a critical Secret Service Counter Surveillance Division (CSD) evaluation did not occur in Butler, Pennsylvania ahead of former President Donald Trump’s July 13 rally, and CSD agents were not present on site the day of the rally.

CSD agents are responsible for conducting threat assessments at event sites before and during events.

U.S. Senator Josh Hawley (R-Mo.) said Thursday that a whistleblower told him that Acting U.S. Secret Service Director Ronald L. Rowe directed a 20 percent cut to CSD personnel ahead of the rally, and that some of the the agents who were cut had been warning of security problems for months.

Those agents, according to Hawley, “were NOT present in Butler” when 20-year-old Thomas Matthew Crooks attempted to assassinate Trump from the rooftop of a nearby building, in plain view of many  rallygoers.

“This is significant because CSD’s duties include evaluating potential security threats outside the security perimeter and mitigating those threats during the event,” Hawley wrote in a letter to Rowe. “The whistleblower claims that if personnel from CSD had been present at the rally, the gunman would have been handcuffed in the parking lot after being spotted with a rangefinder.”

Hawley noted that Rowe had acknowledged during his Senate testimony that the American Glass Research building complex should have been included in the security perimeter of the rally in Butler.

“The whistleblower alleges that because CSD was not present in Butler, this manifest shortcoming was never properly flagged or mitigated,” Hawley wrote.

The whistleblower, according to Hawley,  further alleged that Secret Service personnel have been raising concerns about security lapses at Trump events since one of his golf tournaments last year. The source said critical Secret Service responsibilities were fobbed off on local law enforcement “who were not properly trained for the event or otherwise prepared to execute the tasks given to them.”  The source said Secret Service personnel “expressed alarm” that unvetted individuals ended up being admitted into the venue.

Those who raised concern to higher ups about these security issues were retaliated against, the whistleblower said.

Rowe, who is usually portrayed in the media as a career, non-partisan law-enforcement official, worked for the Senate Judiciary Committee under former Senator Patrick Leahy (D-Vt.) from 2008 to 2011, and served in the Obama White House in 2011 as a National Security and Law Enforcement Policy Advisor.

Hawley gave Rowe until August 8 to turn over all USSS records surrounding policy and personnel changes related to “advance site threat assessments,” including his role in making the changes. He also demanded that Rowe provide a list of the number of agents who have faced retaliation for speaking out and “a breakdown of Secret Service personnel who were present at the July 13 rally.

Hawley shared whistleblower allegations last week that alleged the Secret Service declined to use drones the day of Trump Butler rally.

“According to one whistleblower, the night before the rally, U.S. Secret Service repeatedly denied offers from a local law enforcement partner to utilize drone technology to secure the rally. This means that the technology was both available to USSS and able to be deployed to secure the site. Secret Service said no,” Senator Hawley wrote in a letter to Department of Homeland Security (DHS) Secretary Alejandro Mayorkas.

His letter also states that, according to the whistleblower, USSS then “changed course” and “asked the local partner to deploy the drone technology to surveil the site,” but only in the aftermath of the attack.

Hawley demanded the DHS turn over all records concerning the United States Secret Service’s (USSS) availability or use of drones during the July 13 rally.