The how-to manual was written in the 50s...
From a review...
Communist and socialist elements within a parliament initiate "policies and legislation which strengthen the hand of grassroots revolutionaries." They also connive to punish those who oppose the planned coup. "Meanwhile, grassroots revolutionaries whip up the appearance of popular support" for the revolutionary agenda "through strikes, rallies, petitions, threats, and - sometimes - sabotage. The 'pressure from below' by the small number of revolutionaries and their larger number of dupes is then used to 'justify' the centralization of power in the hands of the executive branch of the state. Wishy-washy politicians are intimidated, and the 'pressure from above' intensifies.Each legislative victory results in new demands for even stronger legislation, which is relentlessly pursued by communists and their dupes in parliament - who claim that they are acting in the name of the popular will. The cycle continues until opposition is completely powerless, intimidated, or liquidated - and the revolution is a fait accompli."
-- The New American magazine, July 5, 1999
Sound familiar? The communists learned how to exploit black American grievances in the 20s to further the revolution. Their first big effort was The Scottsboro Boys case in the 1930s (which was legitimate racism).