What are the "these" you speak of?
Answer:
No, they don't.
Explanation:
Political parties generally only focused on maintaining total votes to hold or improve their position. Influencing policies are most commonly done by Political Action Committee (PAC).
PAC is a group that commonly consist of people from the private sectors. (such as activists, business representative, etc). PAC usually funded several political candidates in order to influence the creation of a certain policy. The policies supported by PAC generally only benefited the members of the PAC rather than the citizens as a whole.
It showed a colonial revolt could produce a nation based on popular sovereignty
After the passage of the twenty-sixth amendment the group of citizens which are automatically excluded from the right to vote were people under the age of 18, so minors. The passage of the twenty-sixth amendment stated that people of the age of eighteen and over were allowed to vote, when previously only people of twenty-one and over were allowed to vote. This is in part because of the student activism due to the Vietnam War.
