http://www.slate.com/articles/news_and_politics/politics/2015/01/scott_walker_s_unexpected_defense_of_obamacare_the_wisconsin_governor_may.html

Obamacare advocates have had a rough time of it lately. In November, the Obama administration admitted to erroneously overstating the number of enrollees by counting people who signed up for dental plans. In December, MIT economist and Affordable Care Act architect Jonathan Gruber got dissected by a House panel for a string of excruciatingly candid comments about the law’s design. (Its success, Gruber had previously argued, was in part due to “the stupidity of the American voter.”) And this month, the New England Journal of Medicine is running a paper saying the ACA’s supporters “have good reason to worry” about an upcoming Supreme Court decision that could gut the law.