Rep. Jody Hice, R-Ga., is fighting a subpoena to testify before the Georgia special grand jury hearing evidence in an investigation into possible 2020 election interference by former President Donald Trump and others, court papers show.

Hice, a Trump ally who voted to reject the state-certified election results in Georgia and Pennsylvania on Jan. 6, is seeking to quash the subpoena from the grand jury assisting the Fulton Co. district attorney’s investigation.

The court documents don’t specify what topics the grand jury wants to discuss with Hice. A spokesman for Fani Willis, the district attorney, declined to comment on the case.

Willis, a Democrat, is investigating whether there were any “coordinated attempts to unlawfully alter the outcome of the 2020 elections” in Georgia.

Hice was initially scheduled to appear before the grand jury on Tuesday, but that appearance was postponed after Willis’ office on Monday agreed to delay the deposition pending the outcome of a July 25 hearing on the case in federal court, according to a court filing.

“Congressman Hice received a subpoena from the Fulton County District Attorney’s Office to appear as a witness before the special purpose grand jury, and his legal team has successfully removed the matter to federal court,” said Sarah Selip, a spokeswoman for Hice, in a statement Monday. “At this time, Mr. Hice is eager to return to Washington, D.C. to fulfill his duties as a member of Congress as the House of Representatives is in session this week.”