, May 31 -- President Donald Trump formally bid goodbye to Elon Musk at the White House on Friday, closing a controversial and impactful chapter for the billionaire entrepreneur, who is stepping down from his leadership role at the Department of Government Efficiency (DOGE).

Musk, now returning full-time to helm his companies - including Tesla, SpaceX, and social media platform X - was praised by Trump for bringing "a colossal change" to government operations. Trump acknowledged that some of Musk's team would remain in place, continuing the work they started.

Wearing black attire and a "The Dogefather" T-shirt, Musk nodded as Trump listed off federal contracts that had been eliminated under Musk's oversight. Accepting a ceremonial key, ...