From the W. E. B. Du Bois article:

In 1956, I shall not go to the polls. I have not registered. I believe that democracy has so far disappeared in the United States that no “two evils” exist. There is but one evil party with two names, and it will be elected despite all I can do or say. There is no third party. On the Presidential ballot in a few states (seventeen in 1952), a “Socialist” Party will appear. Few will hear its appeal because it will have almost no opportunity to take part in the campaign and explain its platform. If a voter organizes or advocates a real third-party movement, he may be accused of seeking to overthrow this government by “force and violence.”

...

The present Administration is carrying on the greatest preparation for war in the history of mankind. Stevenson promises to maintain or increase this effort. ... The “other” party has surrendered all party differences in foreign affairs, and foreign affairs are our most important affairs today and take most of our taxes.

...

Is the refusal to vote in this phony election a counsel of despair? No, it is dogged hope. It is hope that if twenty-five million voters refrain from voting in 1956 because of their own accord and not because of a sly wink from Khrushchev, this might make the American people ask how much longer this dumb farce can proceed without even a whimper of protest.