Political psychology is an interdisciplinary academic field dedicated to understanding politics, politicians and political behavior from a psychological perspective. If politics and psychology were to hold hands, you would have political psychology. Political psychology is a ground that scrutinizes the relationship between psychology and politics.
The political psychologist applies psychological theories to political problems. Although political science is greatly mixed up in the study, psychology is stressed more as the central field of study. Political psychologists may as well watch the public as a whole. A political psychologist may be fascinated in understanding what people actually think about their government and how they sense about political events and news.
Hence, politicians have an incentive to hire political psychologists to assist them convince