WRAPUP 3-Obama calls for financial regulations, stimulus

(Adds Obama on capital gains tax, Pew poll, Clinton comment)

By Matthew Bigg

NEW YORK, March 27 (Reuters) - Democratic presidential candidate Barack Obama proposed greater government regulation of the U.S. financial system and a new $30 billion economic stimulus plan on Thursday in response to the housing crisis.

Both Obama and his Democratic rival, New York Sen. Hillary Clinton, accused Republican candidate John McCain of supporting little to ease the current credit and housing problems, which drew a quick response from the McCain camp.

The focus on the economy mirrors its pressing importance for Americans. A Pew Research Center poll said people are as negative as they were during the recession of the early 1990s, with just 11 percent rating the economy as excellent or good.

Obama said under Republican and Democratic administrations -- a slap at Clinton's husband, 1990s Democratic President Bill Clinton -- an era of financial deregulation created conditions that pushed the U.S. economy to the brink of a new recession.

"It is time for the federal government to revamp the regulatory framework dealing with our financial markets," the Illinois senator said in a wide-ranging speech on the economy.

In a month when the U.S. Federal Reserve helped shore up the ailing financial system and financed the takeover of Bear Stearns, a major Wall Street investment firm, Obama said the new rules should include liquidity and capital requirements for financial institutions.

"If you can borrow from the government, you should be subject to government oversight and supervision," he said.