Wu Sex Sandal

Oregon Democratic Rep. David Wu office is shown Monday, July 25, 2011, in Portland, Ore. Wu faced increased pressure Monday after House Democratic leader Nancy Pelosi called for an ethics investigation over an 18-year-old woman’s claim of an “unwanted sexual encounter” with him. Pelosi sent a letter Monday to leaders of the House Ethics Committee, saying an investigation is warranted. (AP Photo/Rick Bowmer)