The Beginning of the End of the Republican Congress: Chaffetz vs. Allen
In Health Care Insurance Reform We See The History of the Republican Party Very few American policy initiatives have been as popular as Obamacare. The fact that several years of Republican opposition to the Affordable Care Act did not result in any alternative policies or specific revisions to the law suggest that Republicans were aware of that. Touting opposition and threatening to repeal worked with their base, but actually doing something would lead to widespread outrage and loss of votes, possibly loss of actual elections.
Source: scienceblogs.com