Zohran Mamdani followed in his father's path by setting up a branch of a US radical Muslim group at his elite alma mater in Maine, The Post has learned. The Democratic mayoral nominee co-founded a branch of Students for Justice for Palestine at Bowdoin College in 2013, two years after his professor father, Mahmood Mamdani, gave the keynote address at the inaugural national conference of the group in October 2011.