25. James K. Polk – 143.4
Before assuming the presidency in 1845, James K. Polk displayed his dedication as a student at the University of North Carolina. Like many aspiring politicians, he pursued a career in law before making his way to Washington, D.C. However, Polk’s true brilliance shone through with his strategic move following military action against Mexico. He skillfully negotiated the acquisition of California and New Mexico for the United States, securing these territories for a remarkably low price of just $15 million. This remarkable bargain undoubtedly stands as one of the most noteworthy deals in American history, highlighting Polk’s exceptional negotiation skills and his ability to maximize national interests.