Ka noho ia i Phoenix, ka haere ia ki te mahi mo Hensley & Co., tona matua hou-i-ture Jim Hensley nui Anheuser-Busch pia distributorship. Ka rite ki te tumuaki tuarua o te whanaungatanga tūmatanui i te distributorship, riro ia tautoko tōrangapū i roto i te hapori pakihi rohe, te whakatau i te mau melo kaha pērā i te peeke Charles Keating Jr., kaiwhakawhanake Real Estate Fife Symington III (i muri Kawana o Arizona) me te niupepa niupepa Darrow "Duke" Tully. I roto i te 1982, McCain rere rite te tūru Riparepa mo te nohoanga tuwhera i roto i te rohe 1 o Arizona o te congressional, i te mea i mahue e 30-tau Republican tūmau John Jacob Rhodes. i te take hou a Jacob A. McCain ki te whakawakanga, i patua ki te nuinga o te wā o te hanga raruraru tōrangapū i roto i te Phoenix Gazette: "Ko te aha ahau i rongo i muri i a ia e pā ana ki te mahi i te kaitono o te whārangi o te kārihi
Ko te Phoenix