WASHINGTON - JULY 26: U.S. Rep. David Wu (D-OR) waits for an elevator while he is on his way for a vote on the House floor July 26, 2011 on Capitol Hill in Washington, DC. Wu announced earlier in the day that he will resign from his position after accusations of an 'unwanted sexual encounter' from the 18-year-old daughter of a donor. (Photo by Alex Wong/Getty Images)