Ironically, the cause of the Mexican – American War was due to the politics of the U.S. President at the time, President Tyler. Tyler wanted to achieve a second term in presidency, but his name among the American people was not as well known in contrast to his opponent James K. Polk. President Tyler contemplated ways to make himself a more popular candidate, and came to a conclusion that would essentially foreshadow the coming of the war. He wanted his name to be associated with the thought of “American Expansion”, unfortunately he would never get that chance officially because he lost the election. However, in regards to his loss, he still had a desire to finish is initial plan. He went to Congress and made use of the Joint Resolution for an annexation, instead of a treaty. This will require a two-thirds majority agreement that Tyler did not have. On the last day of his term however, he would send messengers to Texas (which at the time was not a U.S. territory) for the purpose of immediate annexation. This would not sit well with the Mexican nation (Heys) .…