I want to know the answer to the following question:
What did Lok-Ham Chan claim  Changchub Gyaltsen wanted to remove?
All the background I'm provided with is that "However, Lok-Ham Chan, a professor of history at the University of Washington, writes that Changchub Gyaltsen's aims were to recreate the old Tibetan Kingdom that existed during the Chinese Tang dynasty, to build "nationalist sentiment" amongst Tibetans, and to "remove all traces of Mongol suzerainty."". Is that enough to answer the question?
Answer: yes