Ka kammala wannan magana: Bayan ya kammala karatun shari'a, Klinefeldt ya yi aiki a matsayin sakataren Robert W. Pratt na Kotun Gundumar Amurka don Kudancin Gundumar Iowa da kuma Christopher Armstrong da Benjamin Kaplan na Kotun daukaka kara ta Massachusetts. Sannan ya yi aiki a Boston a LibbyHoopes P.C. kafin ya koma Iowa don yin aiki a matsayin mai ba da shawara ga
Barack Obama 2008 yakin neman zaben shugaban kasa da kuma Iowa jam'iyyar Democrat. Daga 2006 zuwa 2009, ya kasance abokin tarayya a Ahlers & Cooney, wani kamfani a Des Moines. Ya kuma kasance memba na Kungiyar Tsarin Mulki ta Amurka.