Nikola files for bankruptcy protection. Here's what to know about the troubled EV maker.

Troubled electric vehicle maker Nikola has filed for Chapter 11 bankruptcy protection months after saying that it would likely run out of cash early this year.

Nikola was a hot startup and rising star on Wall Street before becoming enmeshed in scandal and its founder was convicted in 2022 for misleading investors about the Arizona company's technology.

At the trial of founder Trevor Milton, prosecutors say a company video of a prototype truck appearing to be driven down a desert highway was actually a video of a nonfunctioning Nikola that had been rolled down a hill.