How did the development of the Second American Party System address the question of economic development? Why did political parties at this time attempt to avoid sectional issues such as slavery and market protections?
It, in all honesty, didn’t. All of the parties in the Second System had differing views on a large variety of economic issues ranging from bimetallism and slavery and very rarely agreed on one narrative of economic development.
Parties at the time attempted to avoid highly divisive issues such as slavery because they knew that it would be political suicide, either heavily alienating the south or the north and perhaps even causing greater incidents.