That’s how many people now have the health coverage they need thanks to the President’s health care law.
A Look At Six Years of the Affordable Care Act
The White House
1136

In a recent fact check, we estimated that the number newly insured specifically because of the law is roughly 17 million — approximately 5 million through the exchanges, 11 million through Medicaid, and 1 million assorted others.
http://www.politifact.com/truth-o-meter/statements/2015/nov/11/carly-fiorina/carly-fiorina-says-obamacare-isnt-helping-anyone/