Read More... (Credit: AP/David Goldman) Though in the popular imagination a revolutionary is a bearded Che Guevara with a cigar, a more accurate picture might be a union organizer registering immigrant households. A new study shows that turnout affects how Democratic politicians vote, which strengthens the case that turnout matters. Rain And Representation The study, by political scientists John Henderson and John Brooks, is focused on the question of how politicians use election outcomes to gauge voter opinion.