By the time the Senate returns next Monday from its July 4 recess, some 55,000 more homes will have entered foreclosure. And that’s hardly the full picture of the growing calamity. More than three million homeowners are currently at risk of default and millions more are expected to join them in the coming year as home prices drop, the economy falters and delinquencies rise. Yet the Senate went ahead with its vacation last Friday without passing a foreclosure prevention measure.

The bill was expected to pass, but the vote was derailed by petty politics. Senator John Ensign, Republican of Nevada, for example, demanded that the Senate add a multibillion dollar package of tax breaks for renewable energy. Democrats balked  not out of opposition to the tax breaks, which rightly enjoy bipartisan support, but because Mr. Ensign wanted to tack them on to the foreclosure bill without paying for them. That would threaten passage of the bill in the House, which is more committed than the Senate to pay-as-you-go governing.

This sort of delay achieves political ends, like denying Democrats the chance to campaign on the accomplishment during the recess, but it’s exceedingly poor policy. Foreclosures are feeding the nation’s severe economic problems. Turmoil in the financial markets is rooted in the collapse of the housing bubble and will not abate until house prices stabilize and sales pick up. Even Americans fortunate enough to have a down payment and a willing lender are hesitating, understandably fearful of further price drops. Rising foreclosures add daily to the glut of unsold homes, pushing prices down and foreclosures up in a vicious cycle.

That same financial turmoil, coupled with huge losses in home equity, has deprived many Americans of the means or the confidence to buy a new house or other big-ticket items, like cars. In a recent Gallup poll, a majority of Americans said they were now worse off financially than they were a year ago. That’s the first time in the 32-year history of the question that more than half the population has reported losing ground.