The House Judiciary Committee is launching an investigation into Fulton County District Attorney Fani Willis, demanding the prosecutor turn over key information detailing the criminal indictment of former President Donald Trump over his efforts to overturn the 2020 election.

In a letter sent by Judiciary Chairman Jim Jordan (R-OH) on Thursday, the committee leader accused Willis of using the 41-count indictment to interfere with the presidential election, of which Trump is the current GOP front-runner. The request for information comes just hours before Trump is expected to surrender himself to Fulton County officials for his arraignment in the case.

“Your indictment and prosecution implicate substantial federal interests, and the circumstances surrounding your actions raise serious concerns about whether they are politically motivated,” Jordan wrote. “Given the weighty federal interests at stake, the Committee is conducting oversight of this matter to determine whether any legislative reforms are appropriate or necessary.”

Willis announced the indictment charges earlier this month after conducting a 2 1/2-year investigation into Trump’s efforts to reverse his loss to President Joe Biden in Georgia, a key swing state that helped secure his Electoral College victory. The inquiry focused on five separate actions taken by Trump and the former president’s allies in the weeks following the 2020 election, including phone calls made to Georgia officials to overturn the election results.