"If this isn't good for my heart, I don't know what is," Clinton said of the enthusiastic response from the lunchtime crowd.
"From time to time, I have been called the comeback kid. In eight days, John Kerry is going to make America the comeback country," Clinton said to cheers. The former two-term president said he recognized that "no one's presence can change a single vote, but I hope my reasons can affect a few votes."
Republicans are "trying to scare the undecided voters about John Kerry and they're trying to scare the decided voters away from the polls," said Clinton, who also planned a solo campaign event in Florida later on Monday.
"Isn't it great to have Bill Clinton back on the trail?" Kerry said, drawing thunderous applause.
Kerry drew cheers of delight when he said that he had asked Clinton "if there's anything you have in common with George W. Bush? He thought for a moment and he said, 'In eight days and 12 hours, we will both be former presidents.'"
"Our friends on the other side want a world where they concentrate wealth and power on the far right ... and cooperate with others only when they want to," Clinton said.
"We can do better and in eight days we're going to do better with President John Kerry," Clinton said.
Eight days before the deadlocked election, the United Nations confirmed a potentially damaging New York Times report that almost 380 tons of explosives had vanished from an Iraqi military installation amid widespread looting after the U.S.-led invasion in March 2003.
"George W. Bush who talks tough -- talks tough -- and brags about making America safer, has once again failed to deliver," Kerry said. "This is ... one of the greatest blunders of this administration and the incredible incompetence of this president and this administration has put our troops at risk and this country at greater risk."
Kerry Says Missing Explosives in Iraq Illustrate Bush's Failures