Paul Ryan has released his new budget proposal, "The Path to Prosperity." It looks almost exactly like his old budget proposal. Really—go back and read the article I wrote one year ago, when the Wisconsin congressman introduced his budget proposal for the 2013 fiscal year, which he also called "The Path to Prosperity.” I said that proposal would take health insurance away from tens of millions of people, that it would starve government of resources to conduct everyday business, that it would take vital support away from low-income Americans, and that its promise of deficit reduction was illusory. Every one of those descriptions is equally valid today.

That tells us a lot about Ryan’s priorities—and how little interest he and his allies have in moderating their views, even though the public rejected them last year. Imagine Walter Mondale returning to Congress in 1985 and proposing a budget that undid President Reagan's agenda and reduced deficits by raising taxes on the middle class—in other words, the exact same thing he’d proposed in his losing campaign for the presidency. That will give you some idea of what Ryan is proposing, although Mondale's proposals didn't require the same rhetorical and mathematical games to show budget savings.

The headline Ryan wants you to read is that he's proposing to balance the budget by 2023—that is, a decade from now. Unless the analysts I consulted are missing something, as sometimes happens, this promise does not mean much. Ryan wants to simplify individual income taxes with just two rates: 25 percent and 10 percent. But lowering rates severely reduces the government’s revenue. To achieve the deficit reduction Ryan has in mind, and lower rates as he's proposing, Ryan proposes to "simplify" the tax code, which is a euphemism for closing loopholes. But he doesn’t specify which loopholes he would close—perhaps because he couldn’t achieve the savings he needs without closing loopholes that would affect the middle class.

You may recall that the Romney-Ryan campaign agenda had a similar proposal, for lower rates offset by fewer loopholes, which analysts widely panned as mathematically unrealistic. Ryan's budget may be even less credible, because it would cut taxes from a higher level (the highest rate is now 39 percent, rather than 35, because of the January tax deal) and to a lower level (Romney's proposal reduced higher rates to 28 percent, not 25).

But the real focus of Ryan’s new budget proposal, like his previous one, is to dramatically reduce spending. The effort starts with a plan to transform Medicare into a voucher scheme. Ryan and his supporters don’t like the word "voucher" because it implies that Ryan’s Medicare reforms would undermine the guarantee of comprehensive health benefits that Medicare has traditionally provided to America’s seniors. But the implication is correct. As of 2024, people who reach retirement age would no longer get government insurance. Instead, they would get a voucher, which they would then use to buy insurance. Year after year, the voucher’s value would rise at a pre-determined pace. And if the voucher weren’t big enough to pay for decent benefits? The last Ryan budget never explained how such a scheme would protect seniors in those cases. The new Ryan budget doesn’t either. Most likely, some if not most America’s seniors would end up having to make up the difference on their own dime.