With only seven days to go, presidential candidates John McCain and Barack Obama have scheduled multiple visits to Pennsylvania to rally the faithful and perhaps sway the handful of voters who still claim to be undecided.

This morning, Sen. McCain and running mate Gov. Sarah Palin made a joint appearance in Hershey at the Giant Center, an indoor arena. But a planned late morning outdoor rally at Memorial Stadium in Quakertown was cancelled due to rain.

The rain has not delayed an event by Sen. Barack Obama in Chester. A 10 a.m. rally will be held at at Widener University's Main Quad, One University Place in Chester, said a campaign spokeswoman. For more information visit www.BarackObama.com.

The Chester-Upland School District, calling the Obama rally a "historic day in Chester," closed the schools and cancelled all after-hours events. School Superintendent Gregory Thornton encouraged parents to "take advantage of this educational opportunity," noting it marked the first time a national candidate has visited the city in 40 years.

Gov. Palin will remain in the commonwealth today for campaign appearances at Shippensburg University and and Penn State in State College. In Shippensburg, doors will open at 2:15 p.m at Heiges Field House, 1871 Old Main Drive. In State College, doors will open at 6 p.m. for Palin's rally with country music star Hank Williams Jr.

Contact staff writer Sam Wood at 215-854-2796 or at samwood@phillynews.com.