If Democrats abandon health-care reform in the aftermath of Brown’s victory, the lesson will be that they can’t govern. No majority within the realm of reason will give them the votes to move their agenda swiftly and confidently. Even the prospect of the most significant legislative achievement in 40 years, an achievement that will save hundreds of thousands of lives, will not keep them from collapsing into chaos when they face adversity.

At that point, what’s the pitch for voting for Democrats? That they agree with you? A plumber and I both agree that my toilet should work. But if he can’t make it work, I’m not going to pay him any money or invite him into my home. Governance isn’t just about ideology. It’s also about competence and will. That’s where Democrats are flagging.