The next presidential primary contests are more than a year away. But presumed candidates are already trying to stake a claim to one of health care’s hot-button concerns: surging prescription drug prices. “This is a 2020 thing,” said Peter Bach, M.D., who directs the Center for Health Policy and Outcomes at Memorial Sloan Kettering Cancer Center in New York and tracks drug pricing policy. (Shefali Luthra, Kaiser Health News)