THE THRILL IS GONEhttp://www.washingtonmonthly.com/archives/individual/2010_01/022036.php[E.J. Dionne] As a candidate, Obama pledged to change the tone in Washington and restore amicable relations between the parties. But he also promised to accomplish large things, including a substantial reform of the health-care system, major action to ease global warming and a reshaped and more responsible