The Polk’s Message on the War with Mexico source clearly stated that Mexico had shed American blood in American soil (Texas), and that justified the reasoning of going into war with Mexico. To kill an American in American grounds meant war, however, Polk’s intentions seemed a bit suspicious. In his Inaugural Address, he stated that Texas was part of the United States that “was unwisely ceded” from the nation; about a year later, he declared war against Mexico over Texas. How convenient is it that Mexico supposedly killed shed American blood not even a year after Polk’s statement in his interest in annexing Texas. Why did America go to war with Mexico? Because Polk was able to manipulate the situation into something big enough to go to war against a nation, gain more land, and possibly earn good reputation. It was a triple win for Polk and America did not see through it.