President Donald Trump on Wednesday explicitly pledged to “totally protect” people with pre-existing conditions. “Clearly, everyone has anxiety … if you have employer-sponsored coverage — which more than half the country does — that you may at some point lose that coverage and have to buy a policy” on the individual market, said Doug Badger, senior fellow at the Galen Institute, a right-leaning think tank. “The question is whether an insurer could exclude coverage of your pre-existing medical condition.”