Bernie said it best:

 The  model the Democrats have followed for the last 10 to 20 years has been an ultimate failure. That’s just the objective evidence. We are taking on a right-wing extremist party whose agenda is opposed time after time,  issue after issue by the vast majority of the American people. Yet we have lost the White House, the U.S. House, the U.S. Senate, almost two-thirds of the governors’ chairs and close to 900 legislative seats all over this country. How can anyone not conclude that the Democratic agenda and approach has been a failure?”