Democrats are acutely aware of their political problems.On Sunday, for example, Senator Michael Bennet of Colorado told Kristen Welker on “Meet the Press”:The Democratic Party has lost touch with working people in our country, at a time when 50 years of trickle-down economics has meant that most Americans feel like, no matter how hard they work, their kids are not going to live a life better than the life they led.The Democratic Party brand, Bennet continued,is really problematic. And I think that it is a brand, with all respect to my colleague from California, that is associated with New York...