Bob Casey's lead has grown from 11 points to 18 points in the newest Quinnipiac poll. He now leads 52-34.
Casey was leading 50-39 in the last poll.
Casey leads in every region, except Central PA, where he is behind 44-41.
Santorum's Fav:Unf is 33:30, Casey's is 38:9.
Santorum's job approval is 43, 40 disapprove.
41 think Santorum should be re-elected, 42 think its time for someone new.