The Wisconsin Pirate Party is a political party that is modeled after the Swedish Piratpartiet. There are dozens of Pirate Parties around the world and their political goals are loosely connected. There's also a Pirate Party International, of which the original Swedish Pirate Party is not a member.
The Pirate Wheel is an overview of pirate policies as I’ve understood them from talking to pirates across the world. It’s not an authoritative source over any other, but merely my interpretation — which, in pirate spirit, is no more valid than anybody else’s.