Now a senior fellow in foreign policy and global economy and development at the Brookings, Lieberthal said at any given time, there were a lot of issues in US-China relationship. "But I thought we managed to keep the overall relationship in pretty good shape," he said.
To Lieberthal, top Chinese and US leaders communicate to each other better now because they see each other more often.
"I think in those respects the relationship is calmer and more subtle. And I think it has a much stronger base, and is more much institutionalized, than the media in each of countries treat it," he said.