The title is taken from a popular 1931 best selling book, "Washington Merry-Go-Round," by Robert Sharon Allen and Drew Pearson. Columbia bought the rights to the title only, and then hired Maxwell Anderson to write a fictionalized story about corruption in Washington, D.C..
Lee Tracy plays new congressman Button Gwinnett Brown, namesake of Button Gwinnett, a signer of the Declaration of Independence who was killed in a duel in 1777. In a scene on the train early in the movie, Brown's African American aide talks about Gwinnett's legacy and the great value of his very few surviving letters: $50,000 in 1932. This was true. By 1979, a Gwinnett letter sold for $100,000.