U.S. payrolls plunged in September, signaling the economy may be heading for its worst recession in at least a quarter century as the 13-month-old credit crisis on Wall Street finally hits home on Main Street.

Employers cut the most jobs in five years in September as cash-squeezed companies pulled back in an effort to bolster pinched profits. In its last employment report before Americans choose their next president, the Labor Department said the unemployment rate was 6.1 percent, a climb of 1.4 percentage points from a year before.

``If credit markets remain dysfunctional, the current recession could turn out to be as severe as any in the postwar period,'' said former Federal Reserve governor Lyle Gramley, now senior economic adviser at the Stanford Group Co. in Washington.

The spreading crisis is also having reverberations on the campaign trail, as polls show anxious voters increasingly see Democrat Barack Obama as the candidate best …