Actor Sanjay Dutt has backed Shiv Sena's Aaditya Thackeray, who is making his debut in electoral politics, and said he hopes the Yuva Sena leader wins by a huge margin as the country needs dynamic young leaders. The 29-year-old Yuva Sena chief, who is the elder son of Shiv Sena president Uddhav Thackeray, is contesting the October 21 Maharashtra Assembly election from Mumbai's Worli constituency.