Dee ihe na-esote paragraf a - McKinley bụ onye isi ala n'oge Spanish-American War nke 1898, nke mmeri US bụ ngwa ngwa na mkpebi siri ike. Dị ka akụkụ nke nkwekọrịta udo ahụ, Spen nyefere United States ógbè ya ndị dị na Puerto Rico, Guam, na Philippines. Ka mba ahụ na-enwe ọganihu, McKinley meriri Bryan ọzọ na ntuli aka onye isi ala nke 1900. E gburu Onyeisi ala McKinley
Leon Czolgosz na Septemba 1901, onye osote onye isi ala Theodore Roosevelt nọchiri ya.