Why did Harry Truman win the 1948 presidential election?

Harry.S.Truman won the 1948 presidential election because he commanded the no nonsense pragmatic strength of America that many desired in the after math of World War Two. His motto 'the buck stops here' epitomised this. Despite severe economic recession and the poor fruit of his 21 point programme 'New Deal', his use of the Berlin airlift against the growing tension shown by the 'iron curtain' between east/west Berlin showed the mass economic muscle America could flex when exposed to communist threat as a paternal guiding power over war-torn Europe. Furthermore, he was the first man to address the NAACP and give an executive order commanding the desegregation of the army, going against his own party's racist Dixiecrats, thus risking significant loss of political capital. He thus gained African American support. His impassioned whistle stop tour of every American state was not paralleled by Republican opponent Thomas.E.Dewey's conservative few speeches and couldn’t match Truman's nickname 'give 'em hell Harry'.