A conservative watchdog group is urging the Trump administration to take a closer look at its contracts with Microsoft as the Biden-era “Arctic Frost” probe continues to unravel.
The Center to Advance Security in America (CASA) is demanding the Department of Homeland Security (DHS) review its contracts with Microsoft after the tech giant hired former Biden Justice Department official Lisa Monaco, according to a letter obtained by the Daily Caller News Foundation. The letter warns that Monaco’s senior position poses a national security risk, as she is privy to sensitive information between Microsoft and the federal government.
“The risk that Monaco could again use access to information contained in Department contracts to turn against her political opponents, or even those Microsoft users within the government with whom she disagrees, is great given her past outrageous behavior,” CASA Director James Fitzpatrick stated to DHS. “Considering the various national security implications of Microsoft’s government contracts being overseen by Monaco, we ask you to immediately initiate a review of Microsoft’s contracts with the Department for potential termination.”
Appointed earlier this year as Microsoft’s president of global affairs, Monaco previously served as deputy attorney general under President Joe Biden. As a top prosecutor within the Biden administration, Monaco played an integral role in “Arctic Frost,” a wide-ranging investigation that Republicans contend used an election interference case as a pretense to essentially target the entire Republican Party.
“Given Lisa Monaco’s leadership role in weaponizing the Biden Department of Justice against its political enemies, as evidenced in the recently released documents detailing ‘Arctic Frost’, it is wholly inappropriate and a risk to national security for Monaco to have any role whatsoever in the oversight of DHS contracts at Microsoft,” Fitzpatrick said in a statement provided to the DCNF.
“Monaco does not have a security clearance, cannot enter federal property, and is unfit for this role,” Fitzpatrick continued. “We agree with President Trump that Monaco needs to be fired and hope DHS will initiate an immediate investigation into these contracts.”
Spokespeople for Microsoft and DHS did not immediately respond to requests for comment from the DCNF.
The House Judiciary Committee on Tuesday stated that the Federal Bureau of Investigation’s (FBI) “Arctic Frost” investigation potentially targeted over 150 Republican officials and allies, including Trump White House adviser Steve Bannon, former White House Chief of Staff Mark Meadows and others. Senate Judiciary Chair Chuck Grassley released nearly 200 subpoenas on Wednesday issued by former special counsel Jack Smith’s team, targeting at least 430 GOP entities and individuals.
Smith issued the subpoenas as part of his 2020 election interference case against President Donald Trump, which was dropped along with the classified documents case following Trump’s 2024 presidential election victory.
“Arctic Frost was the vehicle by which partisan FBI agents and DOJ prosecutors could improperly investigate the entire Republican political apparatus,” Grassley, who obtained the subpoenas from a whistleblower, said during a Wednesday press conference. “Contrary to what Smith has said publicly, this was clearly a fishing expedition.”
Monaco — who served as deputy attorney general from April 2021 through January 2025 — aided in the oversight, coordination and execution of the “unprecedented weaponization” of the Justice Department against Trump and his supporters, according to CASA’s letter. The former Biden prosecutor reportedly participated in the opening of the “Arctic Frost” investigation, recommending Garland’s approval and even adding her signature to a document authorizing the sweeping probe on Apr. 2, 2022.
CASA’s demands only add more pressure against Microsoft, which has faced calls from the highest office to boot Monaco.
The president in March rescinded Monaco’s security clearance, stripping her of access to classified information and unescorted access to secure U.S. government facilities. Trump further demanded in September that the tech giant fire Monaco, framing her as “corrupt” and a “menace” to national security.
“Monaco has been shockingly hired as the President of Global Affairs for Microsoft, in a very senior role with access to Highly Sensitive Information,” the president said in a Truth Social post. “Monaco’s having that kind of access is unacceptable, and cannot be allowed to stand. She is a menace to U.S. National Security, especially given the major contracts that Microsoft has with the United States Government.”
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