With the Capitol in the background, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks about the Supreme Court's health care ruling, Thursday, June 28, 2012, in Washington. (AP Photo/Charles Dharapak)
With the Capitol in the background, Republican presidential candidate, former Massachusetts Gov. Mitt Romney pauses while speaking about the Supreme Court's health care ruling, Thursday, June 28, 2012, in Washington. (AP Photo/Charles Dharapak)
With the Capitol in the background, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks about the Supreme Court's health care ruling, Thursday, June 28, 2012, in Washington. (AP Photo/Charles Dharapak)
** FILE ** President Barack Obama speaks in the East Room of the White House in Washington, Thursday, June 28, 2012, after the Supreme Court ruled on his health care legislation. (AP Photo/Luke Sharrett/Pool)
President Barack Obama walks back to the Blue Room of the White House in Washington, Thursday, June 28, 2012, after the Supreme Court ruled on his health care legislation. (AP Photo/Pablo Martinez Monsivais/pool)
Carol Anderson of Williamsburg, Va., holds a cross outside the Supreme Court in Washington, Thursday, June 28, 2012, after the court's ruling on health care. (AP Photo/Evan Vucci)
Supporters of President Obama's health care law celebrate outside the Supreme Court in Washington on June 28, 2012, after the court's ruling was announced. (Associated Press)
President Barack Obama speaks in the East Room of the White House in Washington, Thursday, June 28, 2012, after the Supreme Court ruled on his health care legislation. (AP Photo/Luke Sharrett/Pool)
**FILE** Rachel Del Guidici, 18, of Shreve, Ohio, and others demonstrate June 28, 2012, against President Obama's health care law outside the Supreme Court in Washington. (Associated Press)
President Obama speaks June 28, 2012, at the White House in Washington after the Supreme Court ruled on his health care legislation. (Associated Press)
With the U.S. Capitol in the background, Republican presidential candidate and former Massachusetts Gov. Mitt Romney speaks about the Supreme Court's health care ruling on June 28, 2012. (Associated Press)
Surrounded by staff members, House Majority Leader Eric Cantor (center), Virginia Republican, leaves House Speaker John Boehner's office on Capitol Hill in Washington on June 28, 2012, after the Supreme Court's ruling on President Obama's health care law. (Associated Press)