Raising taxes on the rich will not do it. There aren’t enough rich people to generate the tens of trillions of dollars required to pay for Medicare, let alone all the other programs. Democrats, thus, face a fundamental choice. They can either reverse President Obama’s no-new-middle-class-taxes pledge, or they can learn to live with Paul Ryan’s version of government. Until they find a way to pay for the programs they support, they will not be serious players in this game. They will have no credible plans and will be in an angry but permanent retreat.