McCain, Obama on blitz through battleground states on final day

CNN) -- Sens. Barack Obama and John McCain prepared to stump into the early morning in their last efforts to sway voters before they go to the polls hours later on Tuesday.
Sen. John McCain greets supporters in Tampa, Florida, on Monday.

Sen. John McCain greets supporters in Tampa, Florida, on Monday.
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"I only have one word for you: tomorrow," Obama said at his final rally. "After decades of broken politics, eight years of failed policies, 21 months of campaigning, we are less than one day away from bringing change."

The final major rally in Manassas, Virginia, on Monday night, marked the 20th time his campaign has stumped in Virginia.

Sen. Joe Biden will also visit the state Tuesday when the polls open. Obama will return to Chicago around 1 a.m.

McCain will campaign until 2 a.m. ET, with his final stop in Prescott, Arizona.

McCain will have a rally on the steps of the courthouse, where his hero Barry Goldwater launched his 1964 presidential bid. The site is also where McCain always makes his final stop in his Senate campaigns.

Earlier Monday, Sen. John McCain called on Pennsylvania to help him erase his deficit in the polls and score an upset over Sen. Barack Obama.

"Just one day left until we take America in a new direction. We need to win in Pennsylvania and tomorrow, with your help, we will win," McCain said, pounding his fist on the podium at an event in Moon Township.

"Volunteer, knock on doors, get your neighbors to the polls. I need your vote," he said.

Obama leads McCain by 8 percentage points in Pennsylvania, 51 percent to 43 percent, according to CNN's latest average of state polls. Video Watch McCain ask supporters for their vote »

McCain's campaign has said it is buoyed by its internal numbers not showing up in public polling.

In the past two presidential elections, pre-election polling in Pennsylvania showed strong support for Democrats Al Gore and John Kerry, but both candidates ended up carrying the state by narrow margins.

McCain and his running mate, Alaska Gov. Sarah Palin, have visited Pennsylvania 10 times in 15 days. The state has 21 electoral votes.

In his last visit to the state before voters go to the polls, McCain said, "The pundits have written me off just like they've done four or five times in the past. ... They may not know it, but the Mac is back."

National polls show Obama leading McCain by about 7 percentage points.