Ka cika wannan magana: Bayan ya sauke karatu daga makarantar lauya, Barber ya yi aiki a matsayin mataimakin mai gabatar da kara na gundumar New York daga 1977 zuwa 1981. A cikin 1981, Barber ya shiga kamfanin lauya na Looney &amp; Grossman na Boston, ya zama abokin tarayya a cikin 1985 kuma ya yi aiki a matsayin manajan abokin tarayya daga 2001 zuwa 2003. Ayyukansa na doka sun mai da hankali kan kamfanonin farawa da shari'ar kasuwanci. A lokacin zaben shugaban kasa na Amurka na 2008, Barber ya kasance mai tara kudi kuma mai ba da gudummawa ga kungiyar.
Barack Obama 2008 yakin neman zaben shugaban kasa. Barber ya kasance memba na Kwamitin Kudi na Kasa na Obama don Amurka.