But on one metric, at least, the law seems to be working: More people are getting coverage. According to other Census Bureau data released last week, 4 million people gained insurance last year. About 29 million Americans still dont have insurance, 13 million fewer than before the law took effect.
The biggest improvements in the uninsured rate came in California, a state that fervently embraced the controversial law. About a third of the states residents are now enrolled in Californias Medicaid program, and 1.38 million people are enrolled in private insurance through the states health insurance marketplace after a multimillion-dollar campaign to promote it. (Check out the table at the end of this article to see how uninsured rates changed in every district.)
At the other end of the spectrum, the smallest declines in the rate of uninsured were mostly in Massachusetts, which passed a law in 2006 requiring residents to have insurance. (The Massachusetts law was a model for the ACA.) The state already had high rates of coverage as a result. For example, in District 8, which had the highest rate of coverage of any congressional district in 2015, coverage only increased by 1.5 percentage points from the previous year