Look back at the memorable moments in State of the Union addresses through the years.
As President Barack Obama prepares to deliver tonight's State of the Union address, look back at the many memorable moments in State of the Union addresses through the years.
Department of Defense
From Scott Gries/Comedy Central
Rob Carr/Getty Images
Sony Pictures Television
Jamie Urqhart/River Dee Trust
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!