House Minority Leader Nancy Pelosi, D-CA, gestures while greeting an unidentified man after US President Barack Obama spoke on fuel efficiency standards for model years 2017-2025 cars and light trucks July 29, 2011 at the Walter E. Washington Convention Center in Washington, DC. Looking on are District of Columbia Mayor Vincent Gray (L) and Rep John Dingle (R), D-MI. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)