A medical doctor, right, examines a patient at a CCI Health and Wellness Services health center in Gaithersburg, Maryland, U.S., on Tuesday, April 18, 2017. After the failure of Republicans first attempt to repeal and replace the Affordable Care Act and President Donald Trumps subsequent threats to let the program explode, more health insurers are threatening to pull out of the Obamacare health-care program next year, while others may sharply raise the premiums they charge. Photographer: Andrew Harrer/Bloomberg via Getty Images