Worldwide, 1 in 10 presidents and prime ministers has relatives who were already in politics. Europe and Latin America, both democratic regions, have the highest proportion of leaders who come from political families. Shutterstock March 26, 2019 Dynasties still run the world Farida Jalalzai, Oklahoma State University and Meg Rincker, Purdue University Northwest To reach the highest rungs of power, a new study shows, it really helps if your dad was president.