Donald Trump has sued the US National Archives and the congressional committee investigating his involvement in the January 6 siege on the Capitol in an attempt to block the release of his presidential records.

The former president filed the lawsuit with the US district court for the District of Columbia on Monday, claiming that nearly 50 documents relating to his presidency could be withheld under “executive privilege”, a legal standard that allows the president and other executive branch officials to keep certain communications confidential.

The lawsuit marks the latest legal scuffle between Trump and House Democrats, who for years fought for access to documents relating to Trump’s presidency and business dealings while he was in the White House.