What is the fine-grained topic of the following text: The "Era of Good Feelings" was a time of increased nationalism and prosperity for the nation; however, debates over several important issues created a crack in the outward ... "I am constrained by the insuperable difficulty I feel in reconciling the bill with the Constitution of the United States to return it with that objection. Only return the topic.
"Era of Good Feelings" and its impact on U.S. Nationalism and Constitutional debates