Oh yeah, him.
What do you think it would've been like if it was Wolf v. Castor?
Wolf would be leading by 10 points instead of 20.
Um. No. It would probably be a very close race. Castor has appeal in the SE and a lot of conservatives upset with Corbett would have "come home" a lot quicker for Castor (even though he's not some right wing firebrand, he's been a vocal critic of the establishment enemies of the grassroots).
You might be right. I don't think any polls were ever ran of a Democrat, let alone Wolf, against Castor.