More than a million people could swamp the Affordable Care Act's health insurance marketplaces in the coming months as employers lay off staff during the coronavirus pandemic.

The health insurance markets are a backbone of the Obama-era law that President Donald Trump has tried to demolish. They are now seen as a key option to help protect people from devastating medical bills while they search for another job and new coverage.

Nearly 10 million Americans applied for unemployment benefits in the final two weeks of March, far exceeding the figure for any corresponding period on record.

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