Obama outlines economic rescue plan

U.S. presidential race front-runner Barack Obama rolled out what his campaign called a "economic rescue plan" for the middle class. Obama proposed a temporary tax credit for firms that create new jobs in the United States over the next two years, and penalty-free withdrawals from IRAs and 401(k)s in 2008 and 2009.McCain has already unveiled a plan to buy 300 billion U.S. dollars in troubled mortgages and renegotiate the terms directly with homeowners.CNN's most recent poll of polls shows Obama leading McCain by 8percentage points, 50 to 42 percent.