Outgoing Senate Minority Leader Harry Reid compared the gravity of Russia’s alleged meddling in the US presidential election to the Watergate scandal and the 9/11 terror attacks.

“I think they should have a 9/11-type commission,” Reid said during an interview with BuzzFeed Tuesday night, referring to the panel that examined the details of the September 11, 2001 attacks.

Last week, The New York Times and Washington Post reported findings from the CIA that suggested Russia tried to help Trump win the presidential election via its hacking of Democratic Party organizations.

A trove of emails and documents from those breaches were published by WikiLeaks.