Persistent demonstrations prove there is a demand among the people for change. But a one-day protest or a perfunctory march is not the kind of resounding proof that is needed to clearly define a mobilized constituency. Persistent, dedicated, determined action does. It provides unequivocal leverage for members of Congress who are inclined to vote with you, and it educates and informs members who are on the fence, offering room within the legislative process for persuasive negotiations that lead to more favorable votes on particular issues.
