“I hope they want to stand for what they say they stand for,” Ms. Celander said. “You can’t go out and tell everyone that you’re going to do this and this, and not help to govern.” Mr. Karlsson, too, who in 2018 voted for the Moderates, wants the Sweden Democrats “to walk the walk.” He understands the coalition complications but, he said, “We have to let them into government and see what they can do — either they can manage it or they’re just another bunch of people getting together to complain about things.” Christian Sonesson knows something of what...