Answer
Marat's journalism was largely in defense of the sans-culottes, who were a group of lower-class revolutionaries who had come to power during the French Revolution. He argued that the sans-culottes were the true representatives of the people and that they were the only ones who could save France from the corrupt aristocracy and the monarchy. Marat's journalism was extremely popular with the sans-culottes and helped to galvanize them into action.