Opposition to the administration's overhaul of health care has almost become an article of faith with every Republican running for president. "It is wrong for healthcare. It's wrong for the American people. It's unconstitutional. And I'm absolutely adamantly opposed to ObamaCare," former Massachusetts Gov. Mitt Romney said at a debate in Des Moines, Iowa, earlier this month. "I am for the repeal of Obamacare," former House Speaker Newt Gingrich echoes in a video on his website. By now, it's pretty common knowledge that both candidates once supported the so-called individual mandate that's at the heart of the federal health law.