Preet Bharara is an American lawyer, author and broadcaster, who was famously fired by President Trump and banned by President Putin. During his 8-year tenure as the United States Attorney for New York, he earned the title “Sheriff of Wall Street” for high-level prosecutions of hedge funds, as well as mafia bosses and terrorists. His career inspired the hit TV show Billions, and TIME magazine recognised him as 1 of the 100 most influential people in the world. His new book “Doing Justice” reflects on his time in office.