Data: U.S. Census Bureau Small Area Health Insurance Estimates; Map: Lazaro Gamio / Axios

The Census Bureau released new data yesterday showing that the uninsured rate fell in 71.3 percent of the nation's counties between 2014 and 2015, the first two years Obamacare was in full effect. That's impressive enough, but our visuals editor, Lazaro Gamio, took the data one step further by taking the Census data back to 2010, the year it was signed into law.

Remember, there was some early stuff for the first few years, but the most important parts — the marketplaces, the pre-existing condition coverage, the subsidies, and the individual mandate — didn't kick in until 2014. Watch how quickly the uninsured rate dropped once that happened.

Yes, but: We know, we know — a lot of bad things also happened, like the canceled plans, higher premiums for individual coverage, high deductibles, and the disappearance of the cheaper plans some people wanted. But the reduction in the uninsured rate is one thing even the critics don't dispute.

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Updated 22 mins ago - Politics & Policy

Supreme Court clears way for first federal execution since 2003

Lethal injection facility in San Quentin, California. Photo: California Department of Corrections and Rehabilitation via Getty Images

The Supreme Court ruled early Tuesday that federal executions can resume, reversing a lower court decision and paving the way for the first lethal injection since 2003 to take place at a federal prison in Indiana, AP reports.

The big picture: A lower court had delayed the execution, saying inmates had provided evidence the government's plan to carry out executions using lethal injections "poses an unconstitutionally significant risk of serious pain."

1 hour ago - Health

More Republicans say they're wearing masks

Data: Axios/Ipsos poll; Chart: Andrew Witherspoon/Axios

Nearly two-thirds of Americans — and a noticeably increasing number of Republicans — say they’re wearing a face mask whenever they leave the house, according to the latest installment of the Axios-Ipsos Coronavirus Index.

Why it matters: A weakening partisan divide over masks, and a broad-based increase in the number of people wearing them, would be a welcome development as most of the country tries to beat back a rapidly growing outbreak.

Buildings are getting tested for coronavirus, too

Illustration: Eniola Odetunde/Axios

Testing buildings — not just people — could be an important way to stop the spread of the coronavirus.

Why it matters: People won't feel safe returning to schools, offices, bars and restaurants unless they can be assured they won't be infected by coronavirus particles lingering in the air — or being pumped through the buildings' air ducts. One day, even office furniture lined with plants could be used to clean air in cubicles.