“There are some things about being president that I still have difficulty doing,” he said. “For example, faking emotion. Because I feel it is an insult to the people I’m dealing with. For me to feign outrage, for example, feels to me like I’m not taking the American people seriously. I’m absolutely positive that I’m serving the American people better if I’m maintaining my authenticity. And that’s an overused word. And these days people practice being authentic. But I’m at my best when I believe what I am saying.”
They know how the president sounds: his desire to make it seem he is telling a story rather than making an argument; the long sentences strung together by semicolons; the tendency to speak in paragraphs rather than sound bites; the absence of emotion he was unlikely to genuinely feel. (“He really doesn’t do artifice well,” says Favreau.)
http://www.vanityfair.com/politics/2012/10/michael-lewis-profile-barack-obama