But experts say its more complicated than that.

Decisions about Medicare and Medicaid drug coverage would likely involve leaders from both HHS and CMS, experts said.

Tax expert Rita de la Feria told the BBC she had seen in the yacht scheme "indications" that they "may be misrepresenting information".

He was recently seen at a meeting between industry experts and the Chinese premier Li Qiang.

Here is what experts said about the image.