Secret Service Director Kimberly Cheatle told lawmakers her agency has no radio recordings from the day of the attempted assassination of former President Donald Trump in Butler, Pennsylvania, earlier this month.

On Monday, Cheatle was asked about the security agency’s records-keeping practices by Rep. Russell Fry, R-S.C.

“Does the Secret Service routinely record communications between and amongst detail?” Fry said.

“Radio communications?” Cheatle clarified.

“Any communication,” Fry said.

“Email communications are captured as well as text messages. And then depending on the detail, radio communications are recorded,” Cheatle said.

“Does the Secret Service have recorded communications from the July 13th event?” Fry asked.

“We do not have radio communications from that day,” Cheatle said.

The Secret Service director remained defiant before the House Oversight Committee on Monday as members of both parties demanded her resignation following the assassination attempt of the Republican presidential nominee.

“I just don’t think this is partisan,” said Rep. Ro Khanna, D-Calif. “If you have an assassination attempt on the president, a former president, or a candidate, you need to resign.”

Khanna got Cheatle to agree the recent Trump shooting was “the most serious security lapse since President [Ronald] Reagan was shot in 1981.”

“Well, do you know what Stuart Knight did — he was in charge, at the time, of the Secret Service — do you know what he did?” Khanna asked.

“He remained on duty,” Cheatle said with confidence. The California congressman corrected her.

“He resigned. He resigned,” Khanna said. “And Stuart Knight was not a Democratic appointee … I’m not questioning your judgment, I just don’t think this is partisan. If you have an assassination attempt on a president or a former president or a candidate, you need to resign.”

The hearing room released an audible sigh when Cheatle could not explain why her agency did not secure the rooftop from which the gunman was able to take a direct shot at Trump and kill another rallygoer. Two more spectators in the crowd were injured.

“Can you answer why the Secret Service didn’t place a single agent on the roof?” Oversight Chair James Comer, R-Ky., asked.

“We are still looking into the advance process,” Cheatle said.

Last week, the Secret Service director told ABC News the roof was left clear of security personnel because it was “sloped.” Fox News reported the gunman apparently hid the firearm before the deadly shooting spree. Three counter-snipers were stationed inside the building, but none were on the rooftop. A source also told The Federalist that Trump’s team had repeatedly pled with federal officials to beef up security but were rebuffed “time and again.”

[RELATED: Any Roofer Worth His Salt Knows Secret Service’s ‘Sloped’ Roof Excuse Is Total Nonsense]

On Friday, The Wall Street Journal reported that the 20-year-old gunman had successfully flown a drone at the rally grounds hours before Trump’s speech.

“Thomas Matthew Crooks flew the drone on a programmed flight path earlier in the day on July 13 to scour the Butler Farm Show grounds ahead of Trump’s ill-fated rally,” the paper reported citing law-enforcement officials who were briefed. “The predetermined path, the officials added, suggests Crooks flew the drone more than once as he researched and scoped out the event site.”