New Quinnipiac poll (no link available at the moment) has Rick Santorum trailing Bob Casey by only 6 points among likely voters, 48-42, with 5 percent going to the Green candidate Carl Romanelli and 5 percent undecided.

The vital signs for Santorum still remain weak, job approval and reelect at 42 percent each, but both of those indicators have ticked up over the last month, with the Senator's job approval rising by four points and his reelect rising by 5 points.

Get all the latest on the Pennsylvania Senate Race on RCP's 2006 Election Page.