Hillary Clinton’s presidential campaign ratcheted up its attack on the director of the FBI on Sunday, circulating a draft letter critical of James Comey to former federal prosecutors.

The letter was sent on the same day that Clinton campaign chairman John Podesta called Comey’s letter to Congress “long on innuendo, short on facts.” Comey told Congress on Friday that emails discovered in a separate investigation into Anthony Weiner’s sexting may be “pertinent” to the closed investigation of Clinton’s private server.

“It is out of our respect for such settled tenets of the United States Department of Justice that we are moved to express our concern with the recent letter issued by FBI Director James Comey to eight Congressional Committees,” the Clinton campaign’s letter speaking for prosecutors said.