President Barack Obama talks to reporters about the situation in Ukraine and gives a positive assessment on his health care law, the Affordable Care Act, at the White House in Washington, Thursday, April 17, 2014. Eight million people have signed up for health care through new insurance exchanges, Obama said, besting expectations and offering new hope to Democrats who are defending the law ahead of the midterm elections. Obama also conveyed skepticism about Russian promises to de-escalate a volatile situation in Ukraine, and said the United States and its allies are ready to impose fresh sanctions if Moscow doesn't make good on its commitments. (AP Photo/J. Scott Applewhite)