Pedzisa mutsara unotevera: "A More Perfect Union" ndiwo musoro wehurukuro yakapiwa naSenator Barack Obama musi waMarch 18, 2008, panguva yemakwikwi okutsvaga kukwikwidza musarudzo yemutungamiri wenyika yeDemocratic Party muna 2008. Vachitaura pamberi pevateereri paNational Constitution Center muPhiladelphia, Pennsylvania, Obama akanga achipindura kukwira kwakanga kwaita ngwariro pamashoko anopokanwa akanga ataurwa naJeremiah Wright, aichimbova mufundisi wake uye, kusvikira nguva pfupi hurukuro isati yatanga, akanga ari mumwe wevakapinda mu
nhimbe yake. Obama akaronga mhinduro yake maererano nenyaya huru yerudzi muUnited States. Musoro wehurukuro yacho wakatorwa muSumo yeBumbiro reMutemo reUnited States.