I actually think that Brown losing by 4pts in 2002 was more fluke-ish than last year's result but...
She focused on the important issues up here. Wait and see Schwartz's voting record. She will have a record further to the left than your average PA 13 voter.
Oh, I don't doubt for a minute that Schwartz is a lot more socially liberal than most voters in PA-13, although it has to be said that a lot (read: most) Reps tailor their voting record to something close-ish to their constituents.
Not really my point though... in 2002 the PA-13 numbers in Philly and Montgomery were about the same. That's a fluke, IMO.