But now, Barack Obama's former top adviser has revealed in a new book what happens when the President loses his famous cool.
David Axelrod, Obama's top strategist during his 2012 presidential campaign, claims the 53-year-old once cussed at him in front of others and stormed out of a debate-prep session in a fit of rage.
In his book, 'Believer: My Forty Years in Politics', he describes how he attempted to offer Obama some constructive criticism prior to his first debate with Republican nominee, Mitt Romney
However, Obama refused to accept his advice, Axelrod writes .... http://www.dailymail.co.uk
