At a celebratory rally after Trump’s inauguration, Musk’s White House career got off to a contentious start when he seemingly offered a straight-arm salute at the Capitol One Arena in Washington, D.C., as he excitedly told the crowd: “My heart goes out to you.”

Elon Musk's time in the Trump administration is coming to an end after a tempestuous 129 days in which the world's richest man took an axe to government spending - stirring ample controversy along the way.

Elon Musk ended his brief and tumultuous term in government, with President Donald Trump lauding his contributions even as Washington wrestles with the troubling fallout from his cost-cutting campaign.