More than three million Americans lost health-care insurance coverage last year, according to a new Gallup-Sharecare Well-Being Index. Under the Affordable Care Act, the rate of uninsured Americans decreased to 10.9 percent in 2016; it rose during President Trump’s first year in office, to 12.2 percent. The increase—a modest 1.3 percentage points—represents the biggest single-year bump since Gallup began keeping track in 2008.
