In the wake of Donald Trump’s victory, Elon Musk has not been able to keep up that top 20 spot. He’s crashed all the way down to #36 in the world ranking list, with recent reporting putting him next to Trump on election night and on a call with Ukraine’s Volodymyr Zelenskyy after the win.

Bill Ackman said on Friday that he'd serve under Elon Musk in the Trump administration. Musk has promised "temporary hardship" for Americans under a budget-cutting plan. Billionaires are lining up to serve in President-elect Donald Trump ‘s incoming administration, especially those eager to cut federal assistance programs.