Kammala wannan jumla: A shekara ta 2005, darektan sadarwa na Obama Robert Gibbs ya ba da shawarar Favreau ga Obama a matsayin marubucin jawabi. An hayar da Favreau a matsayin marubucin jawabin Obama jim kaɗan bayan zaɓen Obama zuwa Majalisar Dattawa ta Amurka. Obama da Favreau sun zama kusa, kuma Obama ya kira shi "mai karanta tunaninsa". Ya tafi yaƙin neman zaɓe tare da Obama a lokacin nasararsa
yakin neman zaben shugaban kasa. A shekara ta 2009, an nada shi ga ma'aikatan Fadar White House a matsayin Daraktan Rubutun Jawabi.