Mayor Pete Buttigieg on Friday released a plan to combat addiction, mental health, and loneliness, but he warned that the president himself was part of the cause. “I think that when you have national leadership pitting people against each other, telling some people that they don’t belong, and creating a general atmosphere of general chaos and just plain meanness, then of course stress levels go up,” he said in an interview with Teen Vogue. “And I think stress is a big part of what goes into health. So we can’t pretend there’s no health consequences to what’s going on in...