The US attorney squaring off against the Duke of York is known for his legal battles with the wealthy, powerful and notorious, from the Venezuelan president, Nicolás Maduro, to Donald Trump’s former lawyer Michael Cohen.
Geoffrey Berman, 60, was once a legal partner of Rudy Giuliani, the former New York mayor who is personal lawyer to the US president.
Mr Berman, who worked voluntarily on Mr Trump’s transition team, was appointed US attorney for the Southern District of New York by Jeff Sessions, then the attorney-general, in January 2018. The US attorney is the chief prosecutor representing the government as the head of each of the country’s 94 judicial districts.
The Southern District of New York has a rich history of high-profile cases because