The 78-year-old singer, who hit it big in the 1950s and 60s covering songs by black R&B artists, accused the president of following Marxist ideology.
"He is following his playbook, which is Saul Alinsky's 'Rules for Radicals,'" Boone said, holding up the book. "This is the guy that trained him to be a community organizer, a Marxist, a socialist, a progressive, who wrote the rules for doing what Mr. Obama is doing."
Cavuto repeatedly stepped back from Boone's accusations, saying that "he didn't want to go down this alley," but added that Obama wasn't "the sharpest economic tool in the shed."
"He has a plan which he thinks it’s good for America -- a virtually socialist nation in which people don't get rich, in which the government is in charge of everything," Boone added.
When Cavuto joked that Obama might be targeting Boone, the singer said, "Well I am a target. I was on his enemies list in the first year of his presidency."
Except for short foray into the heavy metal world, Pat Boone was one of the most popular artists of the 1950s. He also hosted a variety show, "The Pat Boone Chevy Showroom," and later, focused on gospel music. A longtime supporter of the Republican party, Boone received a lifetime achievement award at CPAC in 2011.