. >> ryssdal: dennis unsworth was the commissioner of political practices, the agency responsible for enforcing montana's campaign finance laws. >> these groups are names that we hadn't heard. >> ryssdal: his job was to figure out who was behind the mailers and whether somebody was violating montana's strict anti-corruption laws. >> it's not clear where they come from. we have two organizations named here. this one included a bozeman address. i believe on one there was a colorado address and it just wasn't clear where this information was coming from, and so just as initial step i sent them a letter. >> ryssdal: to this group, western tradition partnership? >> yes. >> ryssdal: western tradition partnership-- or wtp, as it's known-- is a 501c4 issue group that popped up in montana four years ago. it bills itself as hard-hitting and pro-growth. >> if radical environmentalists have their way i'll be taking cold showers in the dark. that's why i joined western tradition. >> ryssdal: its stated goal is advancing reasonable resource development. its stated target is radical environmentalist