Pennsylvania: Lynn Swann

After his surprise victory over three-term incumbent Republican Congresswoman Melissa Hart in 2006, few would have guessed that Jason Altmire’s status as a superdelegate would enter into his 2008 reelection contest. But as Altmire gears up for what looks to be a competitive rematch with Hart in November, the race for the Democratic presidential nomination is giving Altmire a bit of political heartburn.