Some liberals think they are headed for an age of liberal dominance and government expansion. “If Obama offers a big, budget-busting program next year, it will more likely be seen as fair than irresponsible,” Jonathan Alter writes in Newsweek.

But the shift in public opinion is not from right to left, or from anti-government to pro-government, it’s from risk to caution, from disorder to consolidation.

There is a deep current of bourgeois culture running through American suburbia. It is not right wing, but it is conservative: a distrust of those far away; a belief in convention and respectability; and a strong reaction against anything that threatens to undermine the stability of the established order.

Democrats have done well in suburbia recently because they have run the kind of candidates who seem like the safer choice — socially moderate, pragmatic and fiscally hawkish. They, or any party, will run astray if they threaten the mood of chastened sobriety that has swept over the subdivisions.