Which President graduated from West Point served in the Mexican War before being elected and is regarded as one of the most inefficient chief executives but is remembered as a hero for another feat?

Answer 1

Grant served in Mexican War shortly after he graduated from West Point. He later resigned his commission and was generally unsuccessful in civilian life. He served as an officer in the Union army and eventually became its commanding general. Later as president, his administration was marred by corruption and incompetence among the officials that he appointed.