Medicare’s price tag, if trends continue, will make a mockery of the idea of limited government. For conservatives, no fiscal cause is more important than curbing this exponential growth. And by fighting health care reform with tactics ripped from Democratic playbooks, and enlisting anxious seniors as foot soldiers, conservatives are setting themselves up to win the battle and lose the longer war.

Maybe Republicans will be able to cast themselves as the protectors of entitlements today, and then impose their own even more sweeping reforms tomorrow. That’s the playbook that McConnell, Brownback and others seem to have in mind: first, save Medicare from Obama; then, save Medicare from itself.

But for now, their strategy means the country suddenly has two political parties devoted to Mediscaring seniors — which in turn seems likely to make the program more untouchable than ever…

l be more Americans over 65 than under 18 — the power of the elderly and nearly elderly may become almost absolute.

In this future, somebody will need to stand for the principle that Medicare can’t pay every bill and bless every procedure. Somebody will need to defend the younger generation’s promise (and its pocketbooks). Somebody will need to say “no” to retirees.