We have entered uncharted territory in the fight over national health care. There’s a new tone in the debate, and it’s ugly. At the moment the Democrats are looking like something they haven’t looked like in years, and that is: desperate. They must know at this point they should not have pushed a national health-care plan. A Democratic operative the other day called it “Hillary’s revenge.” When Mrs. Clinton started losing to Barack Obama in the primaries 18 months ago, she began to give new and sharper emphasis to her health-care plan. Mr. Obama responded by talking about his health-care...