The U.S. Supreme Court on Friday afternoon rejected a bold request from Special Counsel Jack Smith to swiftly decide whether former President Donald Trump is immune from prosecution over his effort to overturn the 2020 election, putting a planned March trial date in question.

The court shot down Smith’s petition for certiorari before judgment in a one-line order that included no noted dissents. The denial comes after a fast-tracked briefing schedule for the unusual petition from Smith’s office, which was first filed on Dec. 11.