"I feel like I should clarify. I wasn't fired," she said. "I was asked to leave and not come back, or go on my own bus tour. So I elected to go on my own bus tour in Ohio."
She said she never called her father to ask about the dismissal, which was linked to the growing controversy over her blog.
"I was obviously upset because I had clearly done something to make people angry or irritated, so then I went on my own tour and it really ended up being amazing," she said.
The book goes on to discuss the odd social nature of a candidate's child on the campaign trail, sometimes dipping into the scandalous, including references to the "crazy-sex" that the campaign trail can bring on, but that MsCain said she never had.
"Which is why, after writing a draft of this book, I took a step back and considered whether I had been too honest. Maybe I was making a mistake to share so many of the intimate details as I watched my dad run for president," she wrote. "Suddenly, it seemed scary to open the windows and let everybody see a snapshot of my life at a time when I was young, impressionable, and feeling a bit frantic. But the children of politicians have a surreal life, and it was time somebody started talking about it."
As for the Republican Party, McCain said it had wandered away from its "bedrock" ideals.
"Honesty. Individualism. Freedom. Back in the day, these concepts were the bedrock of the Republican Party. It wasn't that long ago, either," she writes.
The party was also beginning to show what McCain said was a lack of tolerance for "moderates like me" -- a trend she said she saw before Palin was tapped as the vice presidential candidate over independent Joe Leiberman.
"Being a Republican was sometimes difficult," she writes, "if you had any wayward ideas or attitudes, or if your lifestyle wasn't conventional -- even though what was 'conventional' had eroded to the point of being unrecognizable, or didn't exist anymore."
CLICK HERE to read an excerpt of Meghan McCain's book "Dirty Sexy Politics."