(FILES) US President George Bush (L) waves after announcing Robert Mueller (C) as his choice to be the new director of the FBI at a Rose Garden ceremony at the White House in Washington, DC, on July 5, 2001. Mueller, the former FBI director who led a politically explosive investigation into President Donald Trump, has died aged 81, US media reported on March 21, 2026. (Photo by EMILIE SOMMER / AFP via Getty Images)