Robert Charles O'Brien Jr. (born June 18, 1966) is an American attorney who was the twenty-seventh United States national security advisor from 2019 to 2021. He was the fourth and final person to hold the position during the first presidency of Donald Trump. He is currently the chairman of the American Global Strategies consulting firm.
Robert Charles O'Brien Jr. (born June 18, 1966) is an American attorney who was the twenty-seventh United States national security advisor from 2019 to 2021. He was the fourth and final person to hold the position during the first presidency of Donald Trump. He is currently the chairman of the American Global Strategies consulting firm.
