With new books raising alarm over Biden’s health, Comer emphasizes the need for transparency on the former president's mental decline and critical decision-making during his term.

Sen. Ron Johnson (R-Wis.), the chair of the Senate Permanent Subcommittee on Investigations, is writing letters to two dozen former senior Biden administration officials to appear before his committee to answer what they knew about former President Biden’s health problems in light of allegations that White House officials deliberately kept his cognitive and physical