Dr. SUN Chenghao is a fellow and head of U.S.-EU program at Center for International Security and Strategy (CISS), Tsinghua University. His research interests include U.S. domestic and foreign policy, China-U.S. relations, transatlantic relations, AI and International security, etc. He teaches a graduate-level course on Transatlantic Relations in the School of Social Sciences, Tsinghua University. Dr. Sun has co-authored dozens of reports and books. His latest books Profound Changes Unseen in a Century and the U.S.-Europe Alliance was published by Popular Science Press in 2023, and The Gravity of Power in the White House: The National Security Council (1947-2019) was published by Current Affairs Press in 2020. His work has also been published in Contemporary Asia-Pacific Studies, The Chinese Journal of American Studies, China International Studies, International Forum, Northeast Asia Forum, among others. He is also a social media influencer in China on Weibo with about 700,000 followers.