Answer: More people are involved in the political process.
Step-by-step explanation:
The Amendments to the U.S. Constitution since the Civil War have helped endure that more people are able to vote in U.S. elections which has increased the number of people involved in the political process.
Thanks to those Amendments, African Americans received the rights to vote and then women also received the rights to vote. A further Amendment during the Vietnam war also saw the voting age going from 21 to 18 thereby increasing the number of people who could vote.