Newly declassified intelligence records show then-Vice President Joe Biden in late 2015 allegedly intervened to suppress a CIA report that raised concerns about his family’s business ties in Ukraine, a revelation that Republicans say confirms a “massive cover-up” involving top intelligence officials and the former Obama administration.

The newly revealed documents, declassified Tuesday by CIA Director John Ratcliffe, allege that Biden personally sought to block the circulation of a 2016 CIA assessment describing how Ukrainian officials privately questioned Hunter Biden’s lucrative position at energy company Burisma Holdings. The report was shelved after a person identified in an email only as “PDF Briefer” allegedly told the agency the vice president “would strongly prefer” it not be disseminated on Feb. 10, 2016.