▁John ▁Th une ▁had ▁been ▁a ▁member ▁of ▁Senator ▁Ab dn or ' s ▁staff . ▁Other ▁notable ▁members ▁of ▁Ab dn or ' s ▁staff ▁who ▁went ▁on ▁to ▁fill ▁important ▁public ▁service ▁roles ▁include ▁John ▁Ham re , ▁Under secret ary ▁of ▁Def ense ; ▁Jeff ▁Tr and ahl , ▁C ler k ▁of ▁the ▁House ; ▁Bruce ▁Knight , ▁Under secret ary , ▁Mark eting ▁and ▁Reg ul atory ▁Program s , ▁U . S . ▁Department ▁of ▁Agricult ure ▁( US DA ); ▁Larry ▁Park inson , ▁Deput y ▁Ass istant ▁Secretary ▁for ▁Law ▁En for cement ▁and ▁Security , ▁U . S . ▁Department ▁of ▁the ▁Inter ior ▁( DO I ) ▁and ▁Director , ▁Office ▁of ▁En for cement , ▁Federal ▁Energy ▁Reg ul atory ▁Commission ▁( F ER C ); ▁Phil ▁H ogen , ▁Chair man ▁of ▁the ▁National ▁Indian ▁G aming ▁Commission ▁( N IG C ); ▁Vern ▁Lar son , ▁South ▁Dak ota ▁State ▁Tre as urer ▁and ▁Aud itor ; ▁South ▁Dak ota ▁State ▁Sen ators ▁Walter ▁Con ah an , ▁Mike ▁Ve h le , ▁Lee ▁Sch o en beck ▁and ▁Scott ▁He ide p ri em ; ▁South ▁Dak ota ▁State ▁Represent ative ▁Se an ▁O ' B rien ; ▁Charlotte ▁Fischer , ▁South ▁Dak ota ▁Public ▁Util ities ▁Commission er ; ▁Roland ▁Dol ly , ▁Commission er ▁of ▁Econom ic ▁Development ▁for ▁the ▁State ▁Of ▁South ▁Dak ota ; ▁and ▁Stephen ▁C ens ky , ▁Administr ator ▁of ▁the ▁Foreign