How does the United States navigate its adherence to the One-China policy while maintaining unofficial relations with Taiwan?

Assignment Question

Prepare an academic research paper for my comparative politics course. Since it’s about USA foreign policy and a specific case study i would like the case stutdy to be on: The U.S. Stance on the One-China Policy: How does the United States navigate its adherence to the One-China policy while maintaining unofficial relations with Taiwan? There must be a specific research question and it must be done from the point of view of a specific organ of the U.S Government: e.g National Security Council or whatever.