Final answer:
Major domestic issues facing the Truman administration after World War II included troops needing jobs, the passage of the Taft-Hartley Act, labor unions going on strike, and a major economic depression.
Step-by-step explanation:
After World War II, the Truman administration faced major domestic issues, including millions of troops needing jobs, the passage of the Taft-Hartley Act, labor unions going on strike, and another major economic depression. The GI Bill was not a major issue facing the Truman administration. The Taft-Hartley Act restricted the power of labor unions, and labor unions going on strike caused social unrest and political ramifications.