text: Ka a lụsịrị agha ndị nkịtị n' Amerịka na ọnwụ Onyeisi ala Abraham Lincoln, osote ya, Andrew Johnson bụrụ onyeisi ala nke 17 nke US, Johnson nwere echiche nnupụisi ma na-enweta ọgba aghara n' aka ndị 'congress' kwa mgbe maka ịkwado ụfọdụ iwu.