The 2010 Pennsylvania Democratic primary race between former Republican convert, Senator Arlen Specter, and Rep. Joe Sestak is shaping up to be one of the marquee races of 2010, and a fight that will shape the course of the Democratic party.

Recorded at the annual Netroots Nation conference, The Nation’s Ari Melber and Pennsylvania blogger Susie Madrak moderate the first forum between the two candidates, on issues ranging from climate change to health care reform to bi-partisanship in the Senate.

Read Katrina vanden Heuvel’s preview here. Thanks to Netroots Nation for the video.

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