The story is here:
Overall, 11.8% of U.S. adults say they got a new health insurance policy in 2014. One-third of this group, or 4% nationally, say they did not have insurance in 2013. Another 7.5% got a new policy this year that replaced a previous policy. The rest either did not respond or were uncertain about their previous insurance status.
The key figure is the 4% who are newly insured in 2014, which most likely represents Americans' response to the individual mandate requirement the Affordable Care Act (ACA). This estimate of the newly insured broadly aligns with the reduction Gallup has seen in the national uninsured rate from 2013 to the first days of April 2014. However, the calculation of the newly insured does not take into account those who may have been insured in 2013 but not in 2014.
The ACA envisioned that the new healthcare exchanges would be the main place where uninsured Americans would get their insurance this year, but it appears that a sizable segment of the newly insured Americans used another mechanism. These sources presumably include employee policies, Medicaid, and other private policies not arranged through exchanges.
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If the adult population is presently about 247 million, 11.8% with new insurance in 2014 is 29 million adults.
If 33% of them had no insurance in 2013 (or 4% of the adult population), that's about only 9.6 million to 9.9 million newly insured who weren't previously, leaving 20 million uninsured yet to sign up. Estimates of the total uninsured previously had been widely estimated at 30-40 million Americans.
If the whole point of ObamaCare was to provide insurance to those who didn't have it or couldn't get it, so far ObamaCare is therefore not much of a success, especially since it has caused an upheaval for everyone else who has had insurance, which Obama told us we could keep if we liked it.
Replacement policies going to an additional 7.5% of the adult population who were previously insured means 18.5 million people have had to replace their insurance or wanted to replace their insurance because of ObamaCare, three times as many as the 6 million widely reported to have had their policies canceled because of ObamaCare late in 2013.
That leaves less than a million in the category who were uncertain about their previous insurance status.
It remains to be seen how many saying they have new insurance simply signed up for Medicaid because they didn't qualify for a health insurance subsidy because their income was too low. In Michigan a family of three that doesn't make at least $20,000 a year typically gets forced into Medicaid under ObamaCare if that family wants coverage and hopes to avoid a "tax" for failing to obtain coverage.
Evidently even such a family could avoid the tax, and Medicaid, by making a "hardship" claim.
h/t Chris