The activity that evaluates public attitudes, changes policies and procedures in response to the public's requests, and executes a program of action and information to earn public understanding and acceptance is called:

Public Relations

Explanation:

Public relations is a planned communication process that puts up mutually beneficial relationships between organizations and their publics. Public relations is a practice of managing communication between an organization and its publics to cultivate a positive reputation, usually through publicity and other nonpaid forms of communication. These efforts may also include support of arts, charitable causes, education, sporting events.

try something like republic or democracy joined or something because its talking about a election party.