Amanda Northrop/Vox

The 2010 law gave health coverage to millions but left million of others uninsured. Biden could finish the job.

America has been better off because Obamacare was the law of the land when Covid-19 struck.

When millions of people lost their jobs this spring, many of them could turn to the law’s insurance marketplaces, where they could purchase coverage with the help of premium tax subsidies created by the law. Others qualified for Medicaid in the states that have chosen to expand the program through the law. The Affordable Care Act created a new safety net, and it was there for people in a crisis.

But not for everybody. The law is flawed, and it has been weakened by Republican obstruction. More than 2 million people remain uninsured because the state they live in has refused Medicaid expansion. Some people who lost