WASHINGTON (AP) — When Patrick Kennedy was in Congress, he would sneak in his treatments for substance abuse over the holidays, in between congressional work periods. And he refused mental health treatment recommended by his doctors, worried he would be recognized in that wing of the hospital. On Thursday, the office of Pennsylvania Sen. John Fetterman, a Democrat who was elected to the Senate after a bruising campaign during which he suffered a stroke, announced he had checked himself into the hospital for clinical depression. The U.S. Surgeon General, Vivek Murthy, tweeted praise for Fetterman, saying he hopes his “courage...