WASHINGTON ― Two House Democrats asked the Justice Department’s internal watchdog on Friday to investigate leaks of information about the FBI investigation into Democratic presidential nominee Hillary Clinton.

In a letter to the Justice Department’s Office of the Inspector General, Reps. Elijah Cummings (Md.) and John Conyers (Mich.) cited comments from former New York City Mayor Rudy Giuliani, who said Friday that he obtained information about the FBI’s Clinton investigation long before Director James Comey sent a letter to members of Congress last Friday about new emails that may have been relevant to the Clinton probe. Giuliani is an adviser to GOP nominee Donald Trump and a former top federal prosecutor.

“It is absolutely unacceptable for the FBI to leak unsubstantiated ― and in some cases false ― information about one presidential candidate to benefit the other candidate. Leaking this information to former FBI officials as a conduit to the Trump campaign is equally intolerable,” the letter states.

“These unauthorized and inaccurate leaks from within the FBI, particularly so close to a presidential election, are unprecedented,” it says. “For these reasons, we are calling on your office to conduct a thorough investigation to identify the sources of these and other leaks from the FBI and to recommend appropriate action.”

Editor’s note: Donald Trump regularly incites political violence and is a serial liar, rampant xenophobe, racist, misogynist and birther who has repeatedly pledged to ban all Muslims — 1.6 billion members of an entire religion — from entering the U.S.