At a news conference in the White House on Thursday, U.S. President Barack Obama detailed some successes of what the nation calls Obamacare. The health care program had a disastrous rollout in October but Obama said it's working now.
President Barack Obama's Health and Human Services Secretary Kathleen Sebelius is resigning, paying the price for the chaotic initial rollout of his signature health care law, officials said.
US President Barack Obama told German Chancellor Angela Merkel on Thursday that the United States and its allies should prepare new sanctions against Russia if it escalates the crisis over Ukraine.
President Barack Obama and Vice President Joe Biden shake hands with people in the audience after the repeal of 'Don't Ask, Don't Tell' at the Department of the Interior in Washington, D.C. December 22, 2010.