After a presidential campaign distinguished more by sporadic TV commercials than candidate visits to the state, Pennsylvania voters will help choose the nation's leader and elect a U.S. senator, a state attorney general and dozens of other government leaders in Tuesday's election.
 
The White House race picked up this week as Republican nominee Mitt Romney made plans to visit a Philadelphia suburb Sunday in his first foray into the state since September and his campaign and its conservative allies mounted an 11th-hour advertising blitz.
 
Pennsylvania has the fifth-most electoral votes, 20, and the state has traditionally been a battleground, but President Barack Obama's steady lead in independent polls has relegated it to a relative backwater this year. Obama last visited the state in July.
 
State GOP Chairman Rob Gleason insisted that Romney has the momentum to carry the state and win the election.