Paul Krugman's latest column praises President Obama's new budget big-time. I haven't seen Paul that excited in a long while.

Elections have consequences. President Obama’s new budget represents a huge break, not just with the policies of the past eight years, but with policy trends over the past 30 years. If he can get anything like the plan he announced on Thursday through Congress, he will set America on a fundamentally new course.

The budget will, among other things, come as a huge relief to Democrats who were starting to feel a bit of postpartisan depression. The stimulus bill that Congress passed may have been too weak and too focused on tax cuts. The administration’s refusal to get tough on the banks may be deeply disappointing. But fears that Mr. Obama would sacrifice progressive priorities in his budget plans, and satisfy himself with fiddling around the edges of the tax system, have now been banished.For this budget allocates $634 billion over the next decade for health reform. That’s not enough to pay for universal coverage, but it’s an impressive start. And Mr. Obama plans to pay for health reform, not just with higher taxes on the affluent, but by putting a halt to the creeping privatization of Medicare, eliminating overpayments to insurance companies.

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And even if fundamental health care reform brings costs under control, I at least find it hard to see how the federal government can meet its long-term obligations without some tax increases on the middle class. Whatever politicians may say now, there’s probably a value-added tax in our future.But I don’t blame Mr. Obama for leaving some big questions unanswered in this budget. There’s only so much long-run thinking the political system can handle in the midst of a severe crisis; he has probably taken on all he can, for now. And this budget looks very, very good.