Final answer:
The Second Party System emerged in the United States in the 1820s and 1830s as a result of the expansion of the electorate and the rise of democratic sentiment. Political leaders began to believe that parties could mobilize voters and shape government policies.
Step-by-step explanation:
The Second Party System emerged in the United States in the 1820s and 1830s.
This system was a result of the expansion of the electorate and the rise of democratic sentiment during this time.
Political leaders began to believe that parties could mobilize voters and that they served an important role in shaping government policies and representation.