The recording was discovered in Cash's personal belongings after his death. It will be released as part of "Johnny Cash's America," a documentary airing Oct. 23 on the Biography Channel. The companion DVD/CD package on Legacy Recordings will be available Oct. 28.
The documentary features interviews with Bob Dylan; Al Gore; Snoop Dogg; Sheryl Crow; Steve Earle; Kris Kristofferson; Loretta Lynn; Merle Haggard; U.S. Sen. Lamar Alexander; Tim Robbins; Vince Gill; Cash; his sister, Joanne; and his children, John Carter Cash and Cindy Cash.
In the film, Cash, who was outspoken on social issues, discusses the political process and the two parties.
"The whole film and soundtrack are poignant for what's going on in the political climate right now," said Charlie Dougiello, a spokesman for the project.