What are some examples from Bob Woodward's book that portray Barack Obama negatively?
First of all when an Obama staffer asked Obama's chief of staff if he should contact the republican's for input Rahm Emanuel replied "F**k em we got the votes"
And  Boehner  tried but Obama couldn't keep a promise and kept moving the goal posts.  Obama was so bad that after essentially coming to an agreement with the debt ceiling and the budget with Boehner in a meeting at the WH.  By the time Boehner got back to his office Obama had left a message that he had changed his mind and wanted hundreds of billions more in spending.  
Just a few of the points in Bob Woodward's book.