Did Obamacare Really Insure 20 Million?:
"One of the most frequently heard claims from the Obama administration is that Obamacare is responsible for insuring 20 million adults who were previously uninsured. But Heritage Foundation research shows the administration’s figure is off by a few million.
The Department of Health and Human Services claims that 20 million people have gained health coverage since the enactment of Obamacare in 2010 through early 2016."