President Trump on Wednesday ordered an investigation into actions taken by then-President Biden, citing questions about Biden‘s cognitive state toward the end of his term.

Trump directed the counsel to the president, in consultation with Attorney General Pam Bondi, to probe “whether certain individuals conspired to deceive the public about Biden’s mental state and unconstitutionally exercise the authorities and responsibilities of the President.”

The investigation will focus specifically on actions Biden signed using the “autopen,” which has become a fixation of those on the right as they levy accusations about Biden’s ability to carry out his duties.

Trump’s order cites Biden’s appointment of more than 200 judges to the federal bench, the issuance of thousands of acts of clemency and the issuance of more than 1,000 presidential documents during his term.

Biden and his aides have repeatedly denied that the former president was unable to carry out his duties while in office.

A Biden spokesperson did not immediately respond to a request for comment about Trump’s latest order.

New books, including “Original Sin: President Biden’s Decline, Its Cover-Up, and His Disastrous Choice to Run Again,” have reignited debate about Biden’s mental acuity while in office and whether he experienced cognitive decline.

Since President Trump took office, the GOP has taken a number of steps focusing on Biden.

The White House confirmed Tuesday that pardon attorney Ed Martin would be reviewing Biden’s pardons for his family members, as well as some other clemencies granted during his final days in office. 

House Republicans have reached out to former Biden aides as part of a probe into the former president’s mental acuity.

And the Justice Department last month released the full tapes of Biden’s interview with special counsel Robert Hur, one in which the attorney said Biden appeared to have memory lapses. While president, Biden released the full transcript of the conversation.