Tech billionaire Elon Musk is seen perched behind President Donald Trump’s desk in the Oval Office in their latest cover.

The tech billionaire’s relations with President Trump could influence the administration’s China policy more than any other donor or patron.

Here's a list of the top ten richest people in the world, nine of which are American billionaires. See Elon Musk's net worth.

Elon Musk is taking an influential Washington role but remains private about his family and life out of the spotlight.