Win McNamee/Getty Images
Investigators and first responders work near the wreckage of Amtrak Northeast Regional Train 188, from Washington to New York, that derailed yesterday on Wednesday in north Philadelphia, Pennsylvania
US President Barack Obama and Japanese Prime Minister Shinzo Abe attend official welcoming ceremonies on the South Lawn of the White House in Washington, DC on Tuesday
Jim Lo Scalzo/EPA
US President Barack Obama smiles after signing a memorandum of disapproval regarding S.J. Res. 8, a Joint Resolution providing for congressional disapproval of the rule submitted by the National Labor Relations Board relating to representation case procedures, in the Oval Office of the White House in Washington
Police remove a protester holding a sign as US Secretary of State John Kerry testifies at a Senate Foreign Relations Committee hearing on “The President’s Request for Authorisation to Use Force Against Isis: Military and Diplomatic Efforts” on Capitol Hill in Washington on Wednesday
Anti-Zionist ultra-orthodox Jews of the Naturei Karta movement hold signs outside the Washington Convention Centre where Israeli Prime Minister Benjamin Netanyahu addressed the American Israel Public Affairs Committee (AIPAC) policy conference in Washington, DC, on Monday
An ice covered statue is seen in Lafayette Square on Monday in Washington, DC
Protesters listen during a hearing of the Senate Armed Services Committee on Capitol Hill on Thursday in Washington, DC. Witnesses testified about the use of the Guantanamo Detention Facility in Cuba and US detention policy
The official White House Christmas tree, from the Crystal Spring Tree Farm in Pennsylvania, sits next to the North Portico of the White House in Washington on Friday
Tyler Lewis practises Parkour in downtown Seattle, Washington. Parkour originated in France in the 1980s as military obstacle course training and has now become a recognised sport
Scaffolding surrounds the U.S. Capitol Building while it undergoes repairs in Washington, D.C., U.S., on Wednesday. Republicans roared back in the midterm elections on Tuesday night, capturing control of the Senate from the Democrats
U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington
President Barack Obama, first lady Michelle Obama, Vice President Joe Biden, and others, stand on the South Lawn of the White House in Washington on Thursday, as they observe a moment of silence to mark the 13th anniversary of the 9/11 attacks
US Federal Reserve chairwoman Janet Yellen arrives for testimony before the Senate Banking, Housing and Urban Affairs Committee in Washington, DC. Ms Yellin delivered her semi-annual monetary policy report to Congress.
A protester dressed as a copy of the Bible joins groups demonstrating outside the US Supreme Court in Washington. The court on Monday ruled that business owners could object on religious grounds to a provision of President Barack Obama’s healthcare law that requires closely held companies to provide health insurance that covers birth control
William Temple, from the Golden Isle Tea Party in Brunswick, GA, sits in the audience at the beginning of the second day at the 5th annual Faith & Freedom Coalition’s “Road to Majority” Policy Conference in Washington
Boston Red Sox designated hitter David Ortiz poses for a selfie with US President Barack Obama during a ceremony at the White House to honour the 2013 World Series Champions
Homeless people bundle up at the McPherson Square Metro station near the White House in Washington to escape the snow
US President Barack Obama endorses the National Day of Prayer by attending the celebratory breakfast in Washington, DC, on Thursday
Bao Bao, the four-month-old giant panda, makes her public debut at an indoor habitat at the National Zoo in Washington DC, US. She weighs 7.65kg and was born to the zoo’s female giant panda Mei Xiang and male Tian Tian.
Gary Cameron /Reuters
National Park Service workers spread salt on the icy steps of the Lincoln Memorial in Washington. A heavy snowstorm and dangerously cold conditions gripped the northeastern United States on Friday.