FRONTLINE’s reporting offers insights into Mueller's long career in public service — from his time running the FBI in the 9/11 era, to the probe of Russian election interference that put him on a collision course with President Donald Trump.

Mueller’s report wasn’t a hoax. It documented Russian interference and a campaign that welcomed it — facts buried by a more convenient narrative. The post The Mueller Report Was Never a Hoax. It Was a Warning.

MS NOW’s Ari Melber reports on Robert Mueller’s legacy and is joined by Andrew Weissmann, who served as former FBI general counsel and deputy to Mueller during the investigation into ties between

Robert S. Mueller III, the FBI director who transformed the nation’s premier law enforcement agency into a terrorism-fighting force after the Sept. 11, 2001, attacks and who later became special counsel in charge of investigating ties between Russia and Donald Trump’s presidential campaign,

President Donald Trump's social media post celebrating the death of former FBI director Robert Mueller has drawn backlash from across the political aisle.

WASHINGTON, DC Robert S. Mueller III, the former director of the Federal Bureau of Investigation whose career came to define America’s post-9/11 security architecture and later its political divisions,