hide captionLinda Door protested outside the U.S. Supreme Court as it began hearing arguments on the constitutionality of the Affordable Care Act in March 2012.
A rift is growing between Tea Party activists and other Republicans over health care.
Some influential conservatives are now saying the Affordable Care Act is too entrenched to repeal.
Take the U.S. Chamber of Commerce, an influential business lobbying group. When the ACA passed in 2010, the chamber got behind the lawsuit to fight it at the U.S. Supreme Court.
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