Understanding the Political Atmosphere of the Era of Good Feelings

During the early 19th century, the United States experienced a period known as the "Era of Good Feelings," which was characterized by a sense of national unity and political harmony following the War of 1812. This period saw the rise of the Democratic-Republican Party as the dominant political force, largely due to the decline of the Federalist Party. One significant event that took place during this time was the Monroe Doctrine, which set forth important principles regarding European involvement in the Western Hemisphere.

Which of the following best describes the political atmosphere during the Era of Good Feelings?