Fox News commentator Laura Ingraham claims she was asked at the 2016 Republican National Convention to challenge Sen. Ted Cruz, R-Texas, in his next primary, according to her new book.

"People were so torched by Cruz's failure to endorse [President] Trump that talk of primarying him ignited almost the moment he walked off the stage," Ingraham wrote in Billionaire at the Barricades, which was released Tuesday. "In fact, a tanned, good-old-boy type in his late 40s approached me and asked me if I'd consider moving to Texas to run against him."

Cruz, who vied for the GOP presidential nomination against eventual candidate Trump, implored delegates at the event to vote with their "conscience," despite Ingraham earlier advising him to throw his support behind the real estate mogul.

"The arena reverberated with boos and chants of 'Endorse Trump!'" Ingraham continued. "I have never heard a crowd jeer even after a speaker is finished speaking."

Cruz later issued a statement on Sept. 23 announcing he would vote for Trump in the Nov. 8 election.

In the book, Ingraham also details how she witnessed Sheldon Adelson, the Las Vegas magnate and top Republican donor, ask security not to let Cruz into his convention suite.