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  US President Barack Obama, First Lady Michelle Obama, Vice President Joe Biden and his wife Jill arrive to attend the National Prayer Service in Washington, DC, on January 21, 2009. US Presidents have by tradition attended the prayer service on their first full day in office. (Jewel Samad, AFP)
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  (Win McNamee, Getty Images/AFP)
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  This official White House photograph shows US President Barack Obama retaking the oath of office from Chief Justice John Roberts on January 21, 2009 in the Map Room of the White House in Washington, DC. In the highly unusual move, President Obama retook the oath of office after Chief Justice Roberts led him into a stumble when he was originally sworn in to become the 44th US president one day earlier. (Pete Souza, White House/ AFP)
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  This official White House photograph shows US President Barack Obama meeting with White House Chief of Staff Rahm Emanuel on Wednesday morning, at the White House. (Pete Souza, White House/ AFP)
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  This official White House photograph shows US President Barack Obama (second right) and Vice President Joe Biden (right) during a meeting with administration officials, including Lawrence Summers (left), head of the National Economic Council, inside the Roosevelt Room of the White House on Wednesday. (Pete Souza, White House/ AFP)
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  US President Barack Obama and First Lady Michelle Obama greets Beverly Bezeokoli (centre) as visitors tour the Blue Room during an open house at the White House in Washington, Wednesday. (Jim Watson, AFP)
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  Photographers swarm over US President Barack Obama's pen that was about to be used to sign two Executive Orders and three Presidential Memoranda during a ceremony in the Eisenhower Executive Office Building to swear in his staff in Washington, on Wednesday. (Jim Watson, AFP)
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  US President Barack Obama and Vice President Joe Biden arrive for a ceremony in the Eisenhower Executive Office Building to swear in his staff. (Jim Watson, AFP)
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  US Vice President Joe Biden watches US President Barack Obama during a ceremony in the Eisenhower Executive Office Building to swear in his staff in Washington. Obama signed two Executive Orders and three Presidential Memoranda which represent a bold first step to fulfill his campaign promises to make government more responsible and accountable, to launch sweeping ethics reform, and to begin a new era of transparent and open government. (Jim Watson, AFP)
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  US President Barack Obama speaks as US Vice President Joe Biden listens in the Eisenhower Executive Office Building. Five executive orders requiring staffers to comply with strict new rules on governing lobbying, lobbyists and the Freedom of Information Act were signed by Obama and a group of senior staff was sworn in by Vice President Joseph Biden during the event on their first day in office. (Brendan Smialowski, Getty Images/AFP)
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  US Vice President Joe Biden reaches out to shake US President Barack Obama's hand in the Eisenhower Executive Office Building. (Brendan Smialowski, Getty Images/AFP)
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  (Brendan Smialowski, Getty Images/AFP)
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  Members of the senior staff in US Barack Obama's Administration are sworn in at the Eisenhower Executive Office Building. (Brendan Smialowski, Getty Images/AFP)
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  In this photo reviewed by the US Military, a notice hangs on a razor wire fence at Guantanamo detention center on the US Naval Base in Guantanamo Bay, Cuba. Under a draft order obtained Wednesday, the Obama administration plans to close the Guantanamo Bay detention center within a year and halt US military trials of terror suspects held there. (Brennan Linsley, AP)
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  Republican Ray LaHood, President Barack Obama's nominee for Transportation Secretary, testifies at his confirmation hearing before the Senate Committee on Transportation on Wednesday in Washington, DC. If confirmed, LaHood will be one of the few Republicans in President Obama's cabinet. (Brendan Smialowski, Getty Images/AFP)
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  People wait in line to buy inauguration souvenirs at a store in Union Station, in Washington, DC on January 21, 2009. Many of the people were traveling home by train following the inauguration of US President Barack Obama on January 20. (Robyn Beck, AFP)
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  People walk by a newspaper stand with a paper showing coverage of the inauguration of US President Barack Obama, in Mexico City, Wednesday, January 21, 2009. (Gregory Bull, AP)

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