Han Zheng is scheduled to attend the celebrations in Washington D.C. on Monday and is the most senior Chinese official to attend a U.S. inauguration.

Presidents normally have an assortment of officials and advisers contributing to their economic team. In Mr Trump’s case, though, the team is unusually large, stretching from business magnates to academic iconoclasts.

An advocacy group is targeting Elon Musk's Department of Government Efficiency for allegedly violating transparency rules to advise Trump.