going into it, that people may not fully appreciate what is about to happen, until it happens. >> brian mcnulty good to speak with you. thank you for joining us on abc news today. brian: my pleasure. thank you for have -- for having me. christian: for updates on the storm, visit our website at bbc.com/news. you will get expert analysis as well as on the ground coverage as the storm approaches the florida coast. the u.s. commerce secretary is wrapping up a visit to china. she is the fourth biden administration official to visit the country in three months. it is part of an effort to stabilize ties between beijing and washington. they have sparred over taiwan, trade, and intellectual property. let's take a closer look at the biden administration's diplomatic push and the conflicts driving a wedge between these countries. first, u.s. commerce secretary visit. e met with china's premier on tuesday. dialogue with needed to find common ground and increase pop -- possible cooperation. the commerce secretary underlined the u.s. is not trying to stifle china's economy. >> the relationship between the un