Explain the ways that participation in political campaigns and elections in the united states changed between 1815 and 1840, and analyze forces and events that led to these changes

In general, the American voting population became much more active during this time, as voter registration increased and voter turnout grew. This was largely due to concerns over the expansion of slavery.

Ithink i know of the assessment that you're taking, and the answer is "freedom to meet peacefully."