Pennsylvania:
Arlen Specter (R), PA's Senior Senator: GOA C- His non-vote in the early 90's was arguably one of the things that allowed the AW ban to pass, which may be unforgivable to some of you... But he has come over to our side since then, and voted against renewing the AW ban this spring.
Running against:
Joe Hoeffel (D), PA 13th District: GOA F- Supports the AW ban (one of the cosponsors of the newest bill), plus many other forms of gun control. He has a 100% with the Brady Campaign (meaning he voted for the bills they supported 100% of the time).
Specter is holding a ~15% lead over Hoeffel, but he is losing a bit of his lead to the Constitution party candidate, who gained popularity after Rep. Toomey, much more conservative than Specter, lost the Republican nomination.