Protesters chant and hold a copy of the Declaration of Independence and the Constitution in front of Supreme Court in Washington as the court concluded three days of hearing arguments on the constitutionality of President Barack Obama's health care overhaul. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Supporters of the health care law have recently embraced the term "Obamacare," a word they once recoiled from. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Foster Friess introduces Rick Santorum at the 2012 CPAC Conference in Washington, D.C., on Feb. 10 wearing a sweater vest embroidered with the candidate's name. Ron Sachs/CNP DPA/Landov hide caption

itoggle caption Ron Sachs/CNP DPA/Landov