US Attorney (1991-2002) In 1991, Weissmann was an assistant U.S. attorney in the
U.S. Attorney's Office for the Eastern District of New York and he remained in that role until 2002. While at EDNY, Weissmann tried more than 25 cases, some of which involved members of the
Genovese,
Colombo, and
Gambino crime families. He led the prosecution team in the
Vincent Gigante case, in which Gigante was convicted.
In Bush 43 Administration (2002-2005) From 2002 to 2005, Weissmann was deputy director, appointed by
George W. Bush. Nonetheless, the case had already resulted in the destruction of the firm. After the special counsel completed its mandate, in 2005, Weissmann was special counsel again with
Robert Mueller.
Private practice (2005-2011) For a time, Weissmann went into private practice at
Jenner & Block in New York.
In Obama administration (2011-2016) In 2011, he returned to the FBI, serving as general counsel under Mueller. From 2015 to 2017, he headed the criminal fraud section at the U.S. Department of Justice.
In Trump I administration (2017-2019) On June 19, 2017, Weissmann joined Special Counsel Mueller's team to investigate
Russian interference in the 2016 United States elections. He was called "the architect of the case against former Trump campaign chairman
Paul Manafort". A news report in March 2019 said he would soon leave the Justice Department, become a faculty member at New York University, and work on public service projects. In 2020, Weissmann returned to
Jenner & Block as co-chair of its investigations, compliance, and defense practice. On March 25, 2025, Trump issued an executive order
14246 against
Jenner & Block that suspended the security clearance of lawyers and "restricted their access to government buildings, officials and federal contracting work". The order also mentioned the firm's employment of Weissmann. The firm has also been involved in challenging a number of policies by the Trump administration since the start of Trump's second term. Beginning in March 2023, he co-hosted the MSNBC podcast
Prosecuting Donald Trump (with fellow former prosecutor
Mary McCord), which won the 'Webby Winner' and 'People's Voice Winner' in the Crime & Justice category of the 2024
Webby Awards. Since the second election of Trump, they have co-hosted a podcast entitled Main Justice. Their May 10, 2025 podcast also was published on the Weissmann May 10, 2025 episode of his
Substack newsletter that is entitled, Behind The Headlines. His book
Where Law Ends: Inside the Mueller Investigation was published in September 2020. In May 2026 Weissmann published ''Liar's Kingdom: How to Stop Trump’s Deceit and Save America'' (
Little, Brown & Company) == References ==