When much of America remained Isolationist, why did Congress pass the Lend-Lease Act, breaking years of Neutrality Acts?

The Neutrality Acts were laws passed in 1935, 1936, 1937, and 1939 to limit U.S. involvement in future wars. They were based on the widespread disillusionment with World War I in the early 1930s and the belief that the United States had been drawn into the war through loans and trade with the Allies.
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