Tim Robbins touted this project around the various studios for six years. Ironically, for a film about the American political process, it was the English production company Working Title that came up with the necessary funds.
The actors playing Bob and his two primary assistants have played United States Presidents in other films: Tim Robbins in Austin Powers: The Spy Who Shagged Me (1999), Ray Wise in Command & Conquer: Red Alert 2 (2000) and its extension pack Command & Conquer: Yuri's Revenge (2001), and Alan Rickman in Lee Daniels' The Butler (2013).
The film takes place in 1990, on the eve of the Persian Gulf War. In real life, neither of Pennsylvania's U.S. Senate seats were up for re-election that year.
Kelly Noble: Bob Roberts is yet another of that faction that lives to destroy whatever good came out of the 60s, to rewrite the history of that important period. A period where the American people actually were informed and aware, and realized that they had a voice. They demanded that a war end. Bob Roberts is Nixon, only he's shrewder, more complicated, this Bob Roberts. Now here is a man who has adopted the persona and mindset of a free-thinking rebel and turned it on itself. The Rebel Conservative! That is deviant brilliance. What a Machiavellian poser.