“If the Department of Justice needs to contact the State Department in order to assist in the investigation, then there are well-established channels and procedures ... If the need arises, we are ready for full cooperation,” RIA Novosti quotes him.
Prior to this, it was reported about the discovery of secret documents from the period of Biden's work as Vice President of the United States in the premises of a think tank in Washington.
Also, White House Special Counsel Richard Sauber said that Biden's lawyers found new secret documents relating to the period of his vice presidency in the garage of his house in Wilmington.
Later, Biden admitted that he kept secret documents in his "personal library" at home.