Rubuta ci gaba don wannan sakin layi - Bayan yin aiki a takaice a matsayin mai ba da shawara a kan yakin neman zaben shugaban kasa na Sanata John Kerry a shekarar 2004, Lu ya fara aiki ga Barack Obama a shekarar 2005 a ofishinsa na Majalisar Dattawa ta Amurka, inda Lu ya yi aiki a matsayin darektan majalisa da kuma mukaddashin shugaban ma'aikata. Bayan nasarar yakin neman zaben Obama na shugabancin kasa a shekarar 2008
, An nada Lu a matsayin darektan zartarwa na Shirin Canjin Obama-Biden. Lokacin da Obama ya nada Lu a matsayin Sakataren Ma'aikatar, "The New York Times" ya bayyana shi a matsayin "daya daga cikin manyan 'yan asalin Asiya na Amurka a gwamnatin Obama".