"Anyway, the truth is that older Americans really should fear Republican budget ideas — and not just because of that plan to dismantle Medicare. Given the realities of the federal budget, a party insisting that tax increases of any kind are off the table — as John Boehner, the speaker of the House, says they are — is, necessarily, a party demanding savage cuts in programs that serve older Americans.

To explain why, let me answer a rhetorical question posed by Professor John Taylor of Stanford University in a recent op-ed article in The Wall Street Journal. He asked, “If government agencies and programs functioned with 19% to 20% of G.D.P. in 2007” — that is, just before the Great Recession — “why is it so hard for them to function with that percentage in 2021?”

Mr. Taylor thought he was making the case for not increasing spending. But if you know anything about the federal budget, you know that there’s a very good answer to his question — an answer that clearly demonstrates just how extremist that no-tax-increase pledge really is. For here’s the quick-and-dirty summary of what the federal government does: It’s a giant insurance company, mainly serving older people, that also has an army. "