James K Polk - 1845-1849
-Wins on a platform of annexing Texas and Oregon
-In general, Polk favors the "Manifest Destiny' goal of expansion
-Signs the treaty drawing the Canadian border at the 49th parallel
-Moves Zachary Taylor's forces t southern Texas, starting the Mexican American War in 1846
-After the United States wins, Mexico cedes California and New Mexico for the token payment of $15 million