The probe is focused on whether Carroll committed perjury in testimony tied ​to two civil lawsuits that she won against Trump - one tied ⁠to her allegations that he sexually abused her in a New York department store and ​another over defamation in 2019, said the source, who requested anonymity to discuss an ongoing investigation.

CNN ​first reported the development.

The launch of a probe, which is being led by the US Attorney’s Office in Chicago, may not necessarily result in charges being brought against Carroll.

The department and Carroll’s lawyer ​Robbie Kaplan did not immediately respond to requests for comment.

Since last year, Trump’s Justice Department has pursued a slew of investigations into the president’s antagonists and has brought criminal charges in some cases.

The source said the prosecutors’ move is based on a 2022 deposition statement by the former Elle magazine columnist that she received no outside funding for her lawsuit.

Her lawyers later revealed that Reid Hoffman, the billionaire co-founder of LinkedIn, had paid some ​of her legal bills.

A ​jury found in ⁠May 2023 that Trump had sexually assaulted Carroll and defamed her by lying, but did not rape her.

Another jury in January 2024 found that he had defamed her and ordered him to pay $83.3 million in damages.

Trump has denied all wrongdoing and is still in legal battles with Carroll.

Acting Attorney General Todd Blanche, who has moved quickly to carry out Trump’s demands since taking ⁠over ​from his predecessor Pam Bondi, has been recused from ​the department’s investigation as he worked as one of Trump’s personal attorneys on the Carroll appeals, the source ​added.