The FBI spied on nine Republican legislators while laying the groundwork to prosecute now-President Donald Trump, according to a new document. 

Sen. Chuck Grassley released a document October 7 alleging that the Biden FBI prepared for the election case against President Donald Trump by spying on the following Republican legislators: Rep. Mike Kelly of Pennsylvania and Sens. Bill Hagerty and Marsha Blackburn of Tennessee, Cynthia Lummis of Wyoming, Dan Sullivan of Alaska, Josh Hawley of Missouri, Lindsey Graham of South Carolina, Ron Johnson of Wisconsin, and Tommy Tuberville of Alabama.

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The FBI obtained data in 2023 about senators’ phone use from January 4 to January 7, 2021, according to a press release from the U.S. Senate Committee on the Judiciary. That data showed the time, recipient, duration, and location of their phone calls.

“FBI Special Agent [redacted] conducted preliminary toll analysis on limited toll records associated with the following U.S. Senators,” reads the recently-unearthed document.

The document, dated September 27, 2023, was part of investigation “Arctic Frost” – which set the stage for Special Counsel Jack Smith’s prosecution of Trump for allegedly trying to overturn the results of the 2020 election. According to ABC News, a judge dismissed the case in November 2024. 

“Deranged Jack Smith got caught with his hand in the cookie jar,” Trump posted on Truth Social after the recent document went public. “A real sleazebag!!!”

Grassley called the conduct “disturbing and outrageous” in a press release.

“Based on the evidence to-date, Arctic Frost and related weaponization by federal law enforcement under Biden was arguably worse than Watergate,” Grassley said. “The FBI’s actions were an unconstitutional breach, and Attorney General Bondi and Director Patel need to hold accountable those involved in this serious wrongdoing.”

Grassley began oversight of the Arctic Frost investigation in July 2022, after reports from whistleblowers. 

The FBI launched the Arctic Frost investigation in April 2022, led by former agent Timothy Thibault – who gained a reputation as a “prolific anti-Trump FBI agent,” according to The Federalist.  The case was assigned to Smith in November 2022. 

During the course of the investigation, officials in Biden’s White House helped the FBI obtain the government cell phones of Trump and former Vice President Mike Pence, as Grassley revealed earlier this year. The FBI drew the investigation’s scope to include 92 Republican-linked groups – like Charlie Kirk’s Turning Point USA and Turning Point Action.

“It’s taken years to get records and advance my investigation, but what the public is seeing now demonstrates the importance of congressional oversight and whistleblowers,” Grassley said in the release. “My whistleblowers deserve great thanks for what they’ve helped expose. None of this would have been known without them.”

Grassley said continued transparency and whistleblower protections remain vital to exposing what he called ‘one of the darkest chapters of FBI misconduct in modern history.