Former President George W. Bush has stayed out of politics since he left the White House and, except for his own career, he largely keeps the subject at arm's length in his new memoir, "Decision Points."

In an interview with Oprah Winfrey to air on Tuesday when the book is to be released, Bush said he is "through with politics" and refused to offer an opinion on the 2012 presidential election.

In the 481-page book Bush compliments Obama's political skills during a meeting before the 2008 election as the financial crisis was coming to a head. He also criticizes the performance of his party's nominee, John McCain, in the same meeting.

Bush takes responsibility for giving the go-ahead for waterboarding terror suspects, which has touched off a new round of criticism of Bush and calls for his prosecution. He says that he did decide not to use two more extreme interrogation methods, but did not disclose what those were....