U.S. Rep. Charles Rangel listens to U.S. President Barack Obama at the House Democratic Caucus retreat on Capitol Hill in Washington, in this file image from January 14, 2010. Rangel, admonished last week by an ethics panel, will give up the powerful chairmanship of the tax-writing Ways and Means Committee in the House of Representatives, NBC reported on March 3, 2010. REUTERS/Larry Downing/Files (UNITED STATES - Tags: POLITICS HEADSHOT)