Obama healthcare reform White House photographer Pete Souza captures the scenes behind one of the biggest US domestic policy changes since the New Deal of the 1930s Tweet 19 March 2010: Barack Obama talks on the phone with a member of Congress while en route with White House assistant Phil Schiliro to a healthcare event at George Mason University in Fairfax, VirginiaPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 19 March 2010: Obama calls a congressional member from the Oval Office to discuss healthcare reformPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 20 March 2010: The US president greets the House speaker, Nancy Pelosi, and her grandson following a meeting with congressional Democrats to discuss the health insurance reform votePhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 21 March 2010: Obama listens to Schiliro, assistant to the president for legislative affairs, during a meeting on healthcare in the Oval Office. Katie Johnson, the president's personal secretary, stands in the backgroundPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 21 March 2010: Obama holds a lucky charm given to him during the campaign, while on the phone with another Democratic congressional memberPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 21 March 2010: In between healthcare meetings, Obama plays a game of H-O-R-S-E on the White House basketball court with Michael Strautmanis, chief of staff for the Office of Public Engagement and Intergovernmental AffairsPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 21 March 2010: The president reacts to a BlackBerry message in the Treaty Room office in the private residence of the White HousePhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 21 March 2010: Obama, the vice-president, Joe Biden, and senior staff react in the Roosevelt Room to the passing of the healthcare reform billPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 22 March 2010: The US secretary of state, Hillary Clinton, congratulates Obama on the House vote before a meeting in the Situation RoomPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 23 March 2010: Obama embraces the health secretary, Kathleen Sebelius, left, and Pelosi after signing the healthcare reform bill in the East RoomPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 23 March 2010: Obama and Biden wait in the Blue Room before signing the health insurance reform bill into lawPhotograph: Pete Souza/The White House Photograph: Pete Souza/guardian.co.uk 26 March 2010: After signing the healthcare reform bill into law, Obama discusses the Start treaty during a Oval Office phone call with the Russian president, Dmitry MedvedevPhotograph: Pete Souza/AP Photograph: Pete Souza/guardian.co.uk