Tuhia he tomokanga mō tēnei wāhanga - I te pōtitanga kāwana o Wyoming i te tau 2002, i tautoko a Karpan i a Paul Hickey mō te pōtitanga o te Pirimia. I tautoko ia i a Hillary Clinton i te wa o te 2008 Wyoming Democratic presidential caucuses me te mahi hei karere a Clinton i te huihuinga a motu o te roopu
He aha? I te wa o te whiringa kawanatanga o Wyoming i te tau 2010, i mahi a Karpan hei hoa-tiamana mo te kaupapa kawanatanga a Leslie Peterson i te taha o Joe Evans. I tautoko ano ia i a Clinton i te wa o te 2016 Democratic presidential primary. I taua tau ano, ko Karpan te tumuaki o te kawanatanga mo te kaupapa a Ryan Greene o te Whare Paremata.