Justice Department Reporter Kaelan Deese joins Natasha Sweate to discuss the question at the center of multiple high-level investigations is this: Was President Joe Biden truly executing the duties of the presidency, or was the federal government being run by unelected aides using his name? Three coordinated but distinct efforts — led by the House, Senate, and now Trump’s Department of Justice — are digging into allegations that Biden’s cognitive decline enabled a covert “shadow presidency,” with mechanical signatures and insider proxies standing in for presidential decision-making.