For much of the election year, Sen. Rick Santorum has been one of the most embattled Republican senators. And that's the way he remains on election eve. The polling gap between Santorum and Democratic challenger Bob Casey Jr., the state treasurer, had been in the double digits six months ago, and while Santorum has made some gains, he's still behind Casey by between 8 and 15 percentage points. Months ago it seemed as if like Santorum, with his history of winning tight elections at the last minute, might have a good chance of pulling off the victory. Santorum, the No. 3 Senate Republican, attempted to position himself as strong on national security and had underscored his history of bringing federal dollars back to the state. But his staunch support of Bush and the Iraq war as well as his conservative firebrand style led to low approval ratings.

Five months ago, sitting on a slightly worn couch in a hotel lobby in Reading, Pa., Rep. Jim Gerlach said his re-election race would go down to the wire. "It's gonna be very, very close," said the two-term congressman. "The war will probably be the biggest issue." His prediction seems to have been right on target.

There are only a few weeks left until the election, and Sen. Rick Santorum of Pennsylvania is still far behind his Democratic challenger, Bob Casey Jr., in the polls. Rasmussen Reports released a poll this week that found State Treasurer Casey with a 13 percentage-point advantage over the Republican incumbent, 54 percent to 41 percent.

The campaign to re-elect Sen. Rick Santorum is hoping to push the immigration issue into the spotlight in one of the nation's most closely watched races by launching a new television ad and holding a town hall meeting on the issue this week.

Republican Rep. Jim Gerlach donated the $1,000 he received from Rep. Mark Foley's leadership political action committee to Crime Victims Center of Chester County and also canceled a fundraiser with House Majority Leader John Boehner this week.