Trevor Milton, founder and executive chairman of Nikola, resigned after an investment fund accused him of making false asserti

Trevor Milton, a college dropout, turned his entrepreneurial visions into Nikola, a start-up aiming to develop long-haul semi trucks powered by hydrogen and electricity. General Motors was so taken with the idea that it took a $2 billion stake in the company, even though it essentially has no revenue and has not produced a single truck.