Mr. Timmerman discussed his book Shakedown: Exposing the Real Jesse Jackson with G. Gordon Liddy on Mr. Liddy's radio show. During the conversation, Mr. Timmerman argued that Jesse Jackson used his power as an African-American leader to "shakedown" innocent businesses for his own enrichment and silence his critics in the media. He also talked about Rev. Jackson's actions after Martin Luther King, Jr. was assassinated and his relationship with Jeff Fort, a Chicago gang leader. The book is published by Regnery Publishing.