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.
“People are really, really hanging on by a thread here,” said Rebecca Cooke, a Democratic congressional candidate in Wisconsin who has made health care costs a central issue of her campaign.
Inspired in part by French demonstrations, protests in Italy by students in the north and truckers in the south could affect national elections next year.