What was the Cartoon by Thomas Nast was protesting the actions of?

The cartoon by Thomas Nast was primarily protesting the corruption and graft associated with the political machine led by Boss Tweed in New York City during the 19th century. Nast used satirical imagery to highlight the abuses of power and the manipulation of the political system for personal gain. His work aimed to expose the rampant corruption in government and rally public opinion against it, ultimately contributing to Tweed's downfall.