With four days to the presidential election, Republican John McCain is intensifying his underdog message in must-win Ohio on Friday, trailing in the polls but promising "we're coming back" in the race against front-running Democrat Barack Obama.
With the economy uppermost in voters' minds, a government report Thursday showed national output shrinking and consumer spending in decline, erasing lingering doubt the United States was in recession.
Obama has opened his lead in the polls by relentlessly linking his opponent to the unpopular President George W. Bush, a fellow Republican who is heavily blamed for the financial crisis, and who voters perceive as the better choice to turn around the economy.
A new Associated Press-Yahoo News poll showed Obama leading McCain among all likely voters, 51 percent to 43 percent, with a margin of error of plus or minus 3 percentage points. The survey found, however, that one in seven - or 14 percent - can't decide, or back a candidate but might switch.