Stephen Kevin "Steve" Bannon (born November 27, 1953) is an American political aide, former media executive, film producer, and White House Chief Strategist in the Trump administration. In this capacity, he was identified as a regular attendee to the Principals Committee of the U.S. National Security Council from January 28, 2017 to April 5, 2017. Time magazine has called Bannon "the great manipulator".
Before assuming the White House position, Bannon was the chief executive officer of Trump's 2016 presidential campaign. Before his political career, he was executive chair of Breitbart News, a far-right news, opinion, and commentary website which he described in 2016 as "the platform for the alt-right".
Bannon has been a naval officer, banker, radio host, research director, film producer and media executive. He was an officer in the United States Navy for seven years in the late 1970s and early 1980s, serving on the destroyer USS Paul F. Foster as well as at the Pentagon. After his military service, he worked at Goldman Sachs as an investment banker in the Mergers and Acquisitions Department. When he left the company, Bannon held the position of vice president. In 1993, he was made acting director of the Earth-science research project Biosphere 2. In the 1990s, he became an executive producer in the Hollywood film and media industry and has produced 18 films since 1991. Wikipedia