With the hourglass running out for his administration, President Barack Obama’s health care law is struggling in many parts of the country. Double-digit premium increases and exits by big-name insurers have caused some to wonder whether “Obamacare” will go down as a failed experiment.

If Democrat Hillary Clinton wins the White House, expect her to mount a rescue effort. But how much Clinton could do depends on finding willing partners in Congress and among Republican governors, a real political challenge.

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