John McCain's former campaign manager Steve Schmidt was upset with the late senator's daughter, describing her as a bully, entitled, unaccomplished, spoiled and mean.

Her antics left the veteran senator appalled and embarrassed by his daughter during his 2008 campaign trail, according to an 11-part Twitter thread.

The McCain-Palin campaign's director of day-to-day operations used a social media site to rage about a television personality after they clashed online about the sales of her book.

According to the Washington Examiner, McCain has sold just 244 copies of Bad Republican: A Memoir, and he appeared to like a reply baselessly claiming that he had been running a pedo racket.

After 14 years of abuse and attacks, today is the day I decided to respond.

Steve Schmidt, left, and Meghan McCain, right, in a composite image.
Steve Schmidt, left, and Meghan McCain, right, in a composite image.
Getty Images

I was the first adult to ever hear the word "NO" from her. I told her that the Presidential election was not about her.

He left her on the tarmac after she was late for a flight to one of her father's speaking engagements. Appalled and embarrassed.

The behavior of McCain was beyond anything I have ever witnessed from a human being.

They were epic meltdowns that would test the range of the actors on their best days.

He claimed that the tantrums, which he said involved screaming, crying, andraging, were directed at staff, makeup artists, and the Secret Service.

He said he told the former TV personality that she was fortunate and should be grateful.

The former aide accused McCain of rejecting her family's history of service for a shallow and purposeless celebrity.

Insider reached out to McCain but did not get a response.