President Donald Trump and the Republicans who control Congress have a major problem to solve: The uninsured rate has never been lower.

The GOP hasnt figured out how to tackle the crisis despite years of preparing for it, but new data illustrate just how bad the situation is. The national uninsured rate fell to 10.9 percent at the end of 2016, compared to 17.3 percent in 2013, according to polling data Gallup released Wednesday.

What happened during those years to bring about this catastrophe? President Barack Obama signed the Affordable Care Act into law in 2010, and then spent the next six years implementing its programs.

By doing so, Obama severely damaged Americas longstanding distinction among rich countries of having the smallest share of its population on health coverage. The main tools of his destruction were the laws subsidization of private health insurance to low- and middle-income families and its expansion of the Medicaid program to include more adults living in near poverty.