Washington - Senators McCain and Obama agreed on one thing today: they both want Pennsylvania. Both men stumped the Keystone State this morning, with exactly one week until election day. Obama has the lead there, but McCain hopes for an upset as he plots his underdog course to the White House.

The crowd turned out in Chester, Pennsylvania this morning for Barack Obama (web|news|bio), despite wind, rain and frigid temperatures. The Democrat promised change in one week's time, despite an increasingly bitter campaign. 

87 miles west in Hershey, John McCain (web|news|bio) made a joint appearance in front of a roaring crowd with running mate Sarah Palin. The latest state polls show the GOP ticket down by double digits. 

With a week to go in the presidential race, both candidates are focusing on the economy while visiting key swing states.

For the Obama campaign, this means a return to Battleground Virginia. Some analysts say that Virginia is the key state to winning the White House for both parties, and while the polls still show Obama leading there, different polls disagree about the extent of that lead.

The Republican vice presidential candidate, Gov. Sarah Palin, was in the Old Dominion Monday, addressing rallies in Leesburg, Salem and Loudoun County (web|news) ; Senator Obama will be in Harrisonburg and Norfolk on Tuesday. Both campaigns, looking ahead to election day, are putting forth their closing arguments.

Fighting a battle on two fronts, as it were, Sen. McCain has been tasked to differentiate himself from both Sen. Obama and the deeply unpopular Republican president. "We both disagree with Pres. Bush on economic policy," the Arizona senator said in Ohio Monday. "The difference is, he thinks taxes have been too low, and I think, I think spending has been too high."

In Ohio and Pennsylvania, Obama fired back, "Senator McCain still has not been able to tell the American people a single major thing he'd do differently from George Bush (web|news|bio) when it comes to the economy."