Final answer:
The artistry referred to in Pulitzer's suggestion for political cartoons to expose government dealings is the artistry of various artists who use their skills to create cartoons.
Step-by-step explanation:
The artistry referred to by Pulitzer in the political cartoons is the artistry of various artists who use their skills and creativity to create cartoons that expose government dealings. These artists use their art to convey political messages and criticize the actions of the government. Examples of such artists include Joseph Parrish, who depicted Roosevelt's use of government power in a cartoon, and the artists who participated in the Public Works of Art Project (PWAP) during Franklin Roosevelt's presidency.