I would like to second "null and void's" request for a transcript of how the interview went. I don't have any questions for Badnarik, but I think I can fill you in on why the Libertarian Party runs Presidential candidates when they have little chance of winning.
The idea is twofold:
1) To get publicity for libertarian ideas.
2) Pull enough votes to deny election to any Republican who abandons freedom. For example, with Kerry as the alternative, my vote goes to Bush UNLESS he signs a new gun-control law. Having the only "swing" voters on the left means the Republicans will chase the leftward drift of the Democrat party, and the whole country will move left. An alternative, (or several) on the right is necessary as a corrective influence.
The show is community-access and we don't have transcript facilities, but I'll post a recap.