Premiums will increase an average 13 percent next year for millions of Americans, on top of an earlier steep increase. It adds to the problems facing the program, which the Trump administration has weakened.Premiums will increase an average 13 percent next year for millions of Americans, on top of an earlier steep increase. It adds to the problems facing the program, which the Trump administration has weakened. NYT > Business [ SOBAN NEWS: International and National ]