How did the 1917 Russian communist revolution affect the progressives and their impact on America and the American public

Even before the Russian Revolution, the United States had a vibrant socialist left and radical labor movement. The Socialist Party had 100,000 members and many members elected to public office across the country. Eugene Debs, the most outstanding American socialist of his generation, had received 6% of the vote as the party’s presidential candidate in 1912. Unlike most European socialist parties, the SP consistently opposed World War I. Debs was jailed for his opposition to the war and ran for president again in 1920 from jail. Meanwhile the Industrial Workers of the World, formed in 1905, led a series of pitched battle strikes against the bosses in the mining and lumber industries in the west and the textile mills of the northeast.

Explanation:

c. the dred scott v. sandford case,