Final answer:
The 2nd American party system came into being with the creation of a well-organized national political party called the Whigs.
Step-by-step explanation:
The 2nd American party system came into being with the creation of a well-organized national political party called the Whigs. This system emerged in the Age of the Common Man, coinciding with Andrew Jackson's presidency. The Whigs preferred the nationalist tendencies of the postwar years and believed the government played an important role in economic growth. They competed against the Democrats, who supported Jackson's views on the relationship between the people and their government, advocating for the interests of the common citizen.