Scott McClellan, in the face of widespread criticism about his tell all book said that at the outset his intention was not to write a book critical of the White House and its boss. Speaking to reporters on Thursday, he said that many publishers had turned down the proposal of his memoirs as uninteresting.

However, the writing process changed his views and compelled him to write a tell-all book.

In his book McClellan criticized President Bush's policy and accused him of being dishonest about his political agenda leading the country into an expensive and unnecessary war.

The book, "What Happened : Inside the Bush White House and Washington's Culture of Deception" has climbed the top of the best sellers chart this week.

McClellan, 40, was talking during his first press interviews on Thursday for the publicity of his book. The President's former aide portrayed himself as getting disillusioned towards the end of his tenure as press secretary.

He and his publisher have denied that the book was 'ghost written' as many in the administration has said that the book spoke in a language that was very unlike McClellan, who is gentle and soft spoken.

McClellan's book has been widely criticized and seen as an attempt to cash in on his inside knowledge of the White House.