Original sentence: He is the political leader and a representative of Tibetans and exerts a powerful theocratic influence over the the Gelug School of Tibetan Buddhism in which he was trained
Edited sentence: He exerts a powerful theocratic influence over the the Gelug School of Tibetan Buddhism in which he was trained, as can be seen by his recent ban on the Gelug practice of Dorje Shugden.He is head of a government that has always united religion and politics and is the political leader of Tibetans in exile