Kammala wannan jumla: Amurka ta haɗu da tsoffin mulkin mallaka na Spain na Puerto Rico, Philippines da Guam. Tunanin Amurka a matsayin ikon mallaka, tare da yankuna, an yi muhawara mai zafi a cikin gida tare da Shugaba McKinley da masu goyon bayan mulkin mallaka suna cin nasara a kan adawa da Democrat William Jennings Bryan, wanda ya goyi bayan yakin. Jama'ar Amurka sun goyi bayan mallakar mallaka, amma akwai masu sukar da yawa kamar Mark Twain, wanda ya rubuta "Addu'ar Yaƙi" a cikin zanga-zanga. Roosevelt ya koma Amurka gwarzo ne na yaƙi, kuma ba da daɗewa ba aka zaɓe shi gwamnan New York sannan ya zama mataimakin shugaban ƙasa. A lokacin da yake da shekaru 42, ya zama mutum mafi ƙanƙanta da ya zama shugaban kasa bayan
kisan gillar da aka yi wa Shugaba McKinley.