SLIDESHOW: WHITE HOUSE CELEBRATES HEALTH CARE BILL PASSAGE

President Obama and the White House staff spent Sunday trying to round up last-minute support on health care reform as the US House of Representatives cast votes on the president’s signature domestic agenda. White House Chief Photographer Pete Souza chronicled the historic day, catching moments like a hug from Secretary of State Hillary Clinton and President Obama clenching a good luck charm. View the slide show for an inside look at the behind-the-scenes action and celebrations.