"As a political cartoonist, wielded more influence than any other artist of the 19th century. He not only enthralled a vast audience with boldness and wit, but swayed it time and again to his personal position on the strength of his visual imagination. Both Lincoln and Grant acknowledged his effectiveness in their behalf, and as a crusading civil reformer he helped destroy the corrupt Tweed Ring that swindled New York City of millions of dollars. Indeed, his impact on American public life was formidable enough to profoundly affect the outcome of every presidential election during the period 1864 to 1884."