Kammala wannan jumla: A watan Agusta 1847, yayin da yake ci gaba zuwa Mexico City, Scott ya ci Santa Anna a yakin Contreras da kuma
Yaƙin Churubusco. Tare da Amurkawa a ƙofar Mexico City, Trist ya yi shawarwari tare da kwamishinoni, amma 'yan Mexico sun yarda su ba da kadan. Scott ya shirya ya dauki Mexico City, wanda ya yi a tsakiyar watan Satumba. A cikin Amurka, wata muhawara ta siyasa ta fito game da yawan Mexico da Amurka za ta nema ta haɗu, Whigs kamar Henry Clay suna jayayya cewa Amurka ya kamata kawai ta nemi warware batun iyakar Texas, da kuma wasu masu faɗaɗa suna jayayya don haɗuwa da duk Mexico. Masu adawa da yaki sun kasance masu aiki; Whig Congressman Abraham Lincoln na Illinois ya gabatar da "ainihin wuri" ƙuduri, yana kira ga Polk ya faɗi daidai inda aka zubar da jinin Amurka a ƙasar Amurka don fara yaƙin, amma Majalisar ta ƙi yin la'akari da su.