Bob Casey Jr. Democrat, Pat Toomey Republican
There are two Senators from Pennsylvania.
Pileggi and Mellow.
The U.S. Senators from Pennsylvania in 2007 were Arlin Specter (R) and Bob Casey (D).
Pennsylvania has two US Senators: Robert Casey and Arlen Specter.
Senators do not 'represent' a city; they represent the entire State (The Commonwealth of Pennsylvania).
Many folks get confused between the STATE Senate and U.S. Senate. In the U.S. Senate there are 2 senators from each state. For Pennsylvania these two senators represent the state's interests in the federal government. Within the the Pennsylvania state government there are 50 senators who represent their respective districts in Harrisburg.
Each State has 2 Senators
Rick Santorum preceeded Bob Casey. Harris Wofford preceded Santorum.
US Senators are chosen by state wide elections.
The number of electoral votes is equal to the sum of the Representatives and Senators. Also, there are 2 Senators for each state. So Pennsylvania would have 2 Senators and 18 Representatives.
Robert P. Casey, - (D - PA)Arlen Specter, - (D - PA)
The US Senators from Pennsylvania are Casey and Specter.