Michelle Phillips, John Phillips' second wife and a member of the Mamas & the Papas, also had a strong reaction to Mackenzie's allegations. "I have every reason to believe it is untrue," she said in an interview. "John was a bad parent and a drug addict, but f***ing his daughter? If she thinks it's true, why isn't she with a good psychiatrist on a couch? Mackenzie has a lot of mental illness. She's had a needle stuck up her arm for 35 years."
Mackenzie says that when her former stepmother found out about High on Arrival, she vowed to do everything she could to discredit its claims. "She's either protecting the Mamas & the Papas brand for her own reasons, or she is having a textbook reaction," Mackenzie says. "She's embarrassed. [She wants to] sweep it under the carpet, protect the abuser. ... I don't have a history of mental illness; I have a history of addiction. That is not mental illness. I feel bad that Michelle would do this."