Pedzisa mutsara unotevera:
Hurukuro yaAbraham Lincoln yaJune 1858 yaiti Seneta Stephen A. Douglas, Mutungamiri James Buchanan, mutungamiri wake, Franklin Pierce, uye Mutongi Mukuru Roger B. Taney vose vakanga vari chikamu chehurongwa hwokuita kuti uranda huve hwehurumende, sezvinonzi hwakaratidzwa neChitongo cheDare Repamusorosoro che "Dred Scott" cha1857.