"You're releasing all the singles, when we're waiting for the album", he said, asking whether Manigault-Newman's staggered approach to contradicting the White House's denials with recorded proof was a long-term strategy.
Mr Trump's election campaign has instigated legal action against Omarosa Manigault Newman, claiming she violated a non-disclosure agreement.
CBS News' parent company, CBS Corp, owns Simon and Schuster Inc, which published her book.
Manigault Newman has suggested that Trump has been recorded using racial slurs - something Trump denies.
"I never heard the president use any type of racist words ever and I have never had a conversation with him about a potential tape that may or may not exist on any those issues ever", Lewandowski said.
The CNN contributor said that in addition to the wedding party beef, Manigault Newman turned on her in order to help Trump go after the media. "I'm surprised we don't see that a lot more in corporate America".
The book and the recordings by the disgruntled 44-year-old Manigault Newman, once an ardent Trump ally, represents a stunning breach of presidential trust.
It gets more complicated and nuanced, however, if the recording is being used to show that discrimination or retaliation occurred against an employee, she said.
Trump brought on Manigault Newman, previously known for repeatedly being fired on NBC's "The Apprentice", as director of communications for the White House Office of Public Liaison.
Newman did not offer any concrete evidence in her book to back up her claims. "This could be hurtful to your legacy and the integrity of your work", Manigault Newman reportedly wrote to Ryan at the time. This is a clip of the audio in which Trump spokesperson Katrina Pierson is speaking. "She worked here for a year, and didn't have any of these things to say-in fact everything she said was quite the opposite".