It is one thing to maintain a 2nd residence in VA, DC, or MD. It is quite another thing altogether to not even bother to maintain a mailing address in the state you claim to represent. How "in touch" with his constituents can he really claim to be?
Maintaining a Pennsylvania mailing address is so easy that I don't see how that would indicate that he is in-touch with his consistituents whatsoever.
It indicates he cares enough to bother to keep up at least appearances. Santorum's disregard for his constituents is so great he doesn't even care about appearances.
Guys, most reps work in Washington and then go home while Congress is out of session. Santorum never leaves. He really is VA's 3rd Senator.
Santorum is in a competitive re-election. I have some serious troubles believing that he does not care about appearences. It would have been literally a ten-minute phone call to get a mailing address. He may be out-of-touch, but this just shows that he has bad p.r. more than anything, at least to me.
Is your second paragraph really true? I honestly don't know; I would like to hear where you read this.