„Message of President Polk, May 11, 1846”. Arhivirano iz originala na datum 2008-07-25. Pristupljeno 2008-07-20. »Mexico has passed the boundary of the United States, has invaded our territory and shed American blood upon the American soil. She has proclaimed that hostilities have commenced, and that the two nations are now at war.«
See O'Sullivan's 1845 article, "Annexation," [1]Arhivirano 2005-11-25 na Wayback Machine-u United States Magazine and Democratic Review
„Message of President Polk, May 11, 1846”. Arhivirano iz originala na datum 2008-07-25. Pristupljeno 2008-07-20. »Mexico has passed the boundary of the United States, has invaded our territory and shed American blood upon the American soil. She has proclaimed that hostilities have commenced, and that the two nations are now at war.«