Author James Comey

. In early 2013, he left Bridgewater to become a Senior Research Scholar and Hertog Fellow on National Security Law at Columbia Law School. He served on the board of directors of HSBC Holdings until July 2013.

In September 2013, Comey was appointed Director of the FBI by President Barack Obama. In that capacity, he was responsible for overseeing the FBI's investigation of the Hillary Clinton email controversy. His role in the 2016 U.S. presidential election, particularly with regard to his public communications, was highly controversial. His decisions are viewed by some analysts as having possibly cost Clinton the election. Comey also received heavy criticism from Republicans, in part after it was revealed that he had begun drafting an exoneration letter for Clinton before the investigation was complete.

Comey was dismissed by President Donald Trump on May 9, 2017. Statements from Trump and the White House suggested that he had been dismissed to ease the "pressure" Trump was under due to the Russia investigation. On May 16 Comey released his internal FBI memo he had written after a February 14 private meeting with the president. It said Trump had asked him to end the FBI's investigation into Michael Flynn, the former National Security Advisor. The dismissal, the memo, and Comey's subsequent Congressional testimony were interpreted by some commentators as evidence of obstruction of justice and became part of a widening investigation by Robert Mueller, the Special Counsel appointed to probe Russian interference in the 2016 presidential election.