Nelson Lee stops to photograph an ice sculpture entitled Main

Washington ? The Federal Reserve slashed a key interest rate by half a percentage point Wednesday, driving it to a level seen only once before in the last half-century, and the government finally began distributing funds from the billions in the financial rescue package.

Those efforts and others were part of a concerted drive by officials, just days before a national election, to demonstrate they are moving as quickly as possible to deal with the most serious financial crisis to hit the country since the 1930s.

“Policymakers have their foot to the accelerator and they are using every effort at their disposal to stop the slide in the economy and financial markets,” said Mark Zandi, chief economist with Moody’s Economy.com. “And it’s not a moment too soon given the serious damage that has already been done.”

Wall Street, which the previous day posted the second biggest point gain in history, was less impressed with Wednesday’s activity. The Dow Jones industrial average finished the day down 74 points, a drop analysts said partly reflected growing worries about whether the government’s actions will be sufficient to avert a deep and prolonged recession.

The Fed, as investors had hoped, announced a half-point cut in the federal funds rate, the interest that banks charge one another on overnight loans, driving it down to 1 percent, a low last seen in 2003-2004. That rate has not been lower since 1958 when Dwight Eisenhower was president.

Reducing the rate as low as zero cannot be ruled out, some analysts said.