Pedzisa mutsara unotevera: "A More Perfect Union" izita rehurukuro yakapiwa naSenator Barack Obama musi waMarch 18, 2008 panguva yemakwikwi okutsvaga kusarudzwa kwemutungamiri wenyika weDemocratic Party muna 2008. Achitaura pamberi pevateereri paNational Constitution Center muPhiladelphia, Obama akanga achipindura kukwira kwakanga kwaita ngwariro pamashoko anopokanwa akanga ataurwa naReverend Jeremiah Wright, aichimbova mufundisi wake uye, kusvikira nguva pfupi hurukuro isati yatanga, mumwe aiita muhurukuro yake
mushandirapamwe. Obama akaronga mhinduro yake maererano nenyaya huru yerudzi muUnited States. Musoro wehurukuro yacho wakatorwa muSumo yeBumbiro reMutemo reUnited States.