What was one reason that anti-immigrant hysteria swept the nation? immigrants were associated with anarchism and communism. foreigners were held to blame for the depression of 1920. americans felt a lingering hatred for the nations they had fought. politicians believed that immigrants generally supported the opposition party.

Immigrants were associated with anarchism and communism.

Explanation:

After World War I, the country had a desire to go back to the peace and prosperity that they had enjoyed before the war. This included coming back to the status quo in government. Moreover, the US wanted little to do with the international sphere. Therefore, citizens often rejected immigrants as they were associated with anarchism and communism, and therefore, as chaotic, problematic and unwilling to work within the previous system of law.

an era of negotiation.

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