How did participation in political campaigns and elections change between 1815 and 1840?

Voter participation in political campaigns and elections increased due to the new party system, new campaigning methods, and new topics of debate during the Era of Good Feelings are the ways, forces and events that led to the changes of participation in political campaigns and elections in the United States changed between 1815 and 1840.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.