"Leverage existing networks to move large institutions Wayne Wheeler of the Anti-Saloon League had no direct power over Congress, yet he pushed a constitutional amendment through by building what he called 'pressure politics.' The guide explains that Wheeler "understood that the ASL's base are the evangelical Protestant ministers of the midwest and the south" and leveraged them to pressure state politicians, who then pressured Congress — moving the entire system from the bottom up. Anyone trying to change a large organization or law should map the informal influence networks already in place rather than attempting to push from the top down. Source: Tour Guide (unnamed), Prohibition History Lecture, Temperance and Prohibition Tour Presentation"