Jonathan Robert Fowler, more commonly known as J. Robert Fowler, is the President of the United States during the event of The Sum of All Fears, and had a breakdown because of them. He was able to ascend to the presidency as a result of the fallout from the events in Clear and Present Danger. He is preceded in office by an unnamed President, and succeeded by Roger Durling.

He is elected to President after the current, unnamed, President intentionally loses the election to conceal the events in Clear and Present Danger,