Which novel by Robert Penn Warren deals with the themes of power and morality in American politics?

The novel that deals with the themes of power and morality in American politics is "All the King's Men" by Robert Penn Warren. This work provides a profound exploration of the corrupting influence of power and the moral complexities faced by political figures. It tells the story of Willie Stark, a character inspired by the real-life political figure Huey Long, who rises from humble beginnings to become a powerful governor. The narrative delves into Stark's manipulations and the ethical dilemmas that accompany his ascent, reflecting on how personal ambitions can clash with societal responsibilities.

Warren’s exploration of these themes is woven through the storytelling, conveying a realistic portrayal of American politics marked by both idealism and disillusionment. The intricate character development allows readers to witness the moral quandaries faced by individuals seeking power, establishing a nuanced commentary on leadership and governance in the American political landscape.

Other options may focus on important themes and characters but do not specifically address the intersection of power and morality in a political context as effectively as "All the King's Men."