Final answer:
The passage supports the author's purpose by highlighting examples of nationalism during the Revolutionary War and the transition from reliance on patriotism to the establishment of a political framework for American unity.
Step-by-step explanation:
The organizational structure of the passage supports the author's purpose by providing examples of nationalism to explain the idea. Throughout the passage, instances of American nationalism are illustrated during the time of the Revolutionary War, emphasizing how patriotic sentiments and the need for a political framework played significant roles in the formation of a national identity. The passage describes the process from regional differences being put aside to the development of government structures which was crucial for maintaining national unity.
To articulate the development of nationalism, the author discusses the relationship between patriotism and nationalism, indicating how American leaders shifted from relying on patriotism for unity to recognizing the necessity of a robust political framework. By giving the example of the period from 1776 to 1789 and the implementation of ideas from the Declaration of Independence, the passage allows readers to comprehend the evolution of an emerging nationalist sentiment in the United States.