White House

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President Obama selected Sylvia Mathews Burwell — then his White House budget chief — to replace Kathleen Sebelius, who announced in April that she would step down after the flawed rollout of the federal exchange system, HealthCare.gov. (associated press)

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President Barack Obama and White House counselor John Podesta, left, walk across the ellipse in Washington as they head towards the Dept. of Interior, Wednesday, May 21, 2014. Obama and Podesta also walked back to the White House after a signing a proclamation regarding the Organ Mountains-Desert Peaks National Monument. (AP Photo/Pablo Martinez Monsivais)

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President Barack Obama listens to a question as he speaks to reporters in the Brady Press Briefing Room of the White House in Washington, Wednesday, May 21, 2014, after he met with Veterans Affairs Secretary Eric Shinseki and Deputy Chief of Staff Rob Nabors. (AP Photo/Charles Dharapak)

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President Barack Obama listens to a question as he speaks to reporters in the Brady Press Briefing Room of the White House in Washington, Wednesday, May 21, 2014, after he met with Veterans Affairs Secretary Eric Shinseki and Deputy Chief of Staff Rob Nabors. (AP Photo/Charles Dharapak)