Final answer:
The Great Depression in the early 1930s negatively impacted the labor movement due to high rates of unemployment and increasing exploitation of workers.
Step-by-step explanation:
The event in the early 1930s that negatively impacted the labor movement was the Great Depression. The Great Depression, which occurred from 1929 to the late 1930s, resulted in widespread unemployment across the United States. As a result, workers faced increased exploitation as employers took advantage of the surplus of labor and the desperate need for income. This led to a decline in labor union membership and weakened the labor movement's bargaining power.
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