Here's the statement released by White House spokesperson Dana Perino on her predecessor's new book:

Scott, we now know, is disgruntled about his experience at the White House. For those of us who fully supported him, before, during and after he was press secretary, we are puzzled. It is sad - this is not the Scott we knew.

The book, as reported by the press, has been described to the President.
I do not expect a comment from him on it - he has more pressing matters
than to spend time commenting on books by former staffers.

Last I checked, about 77 percent of Americans are "disgruntled."