EXCLUSIVE: President Donald Trump rejected former President Joe Biden’s assertion of executive privilege over a tranche of documents requested by the Senate as part of various probes into the 46th president, determining it is "not in the best interests of the United States." White House counsel David Warrington wrote Monday in a letter addressed to the National Archives and Records Administration (NARA) and obtained by Fox News Digital that Trump "does not uphold the former President’s assertion of privilege" over records sought in four congressional probes. The letter directs NARA to provide the materials to Congress. The dispute centers on...