Loss of factory jobs led to less in the middle class or you needed to work a white collar job to be middle class.
Industrial jobs moved overseas leaving those working in factories without jobs. Middle class jobs no longer included factory work but rather service jobs many requiring college degrees.
The anser is d hope this helps
When he first became President, the conflict with Japan was
still continuing. After the war finished there was trouble in Korea which
became an impasse after China move toward in to help North Korea. Obliteration
of Europe and Asia that required to be reconstructed. The Russians declined to pull
out their troops from Germany and Eastern Europe and remained in Estonia, Latvia,
and Lithuania. There were severe labor difficulties in the US Steel industry.
The US had to readapt to a peace-time economy and recuperate from the enormous
costs of WW II.