Hydrogen electric trucking startup Nikola Corp. filed for Chapter 11 bankruptcy protection Wednesday after it failed to find a buyer or secure additional funds to maintain operations. Nikola was once a Silicon Valley darling, valued at $30 billion in June 2020 after it went public through a special purpose acquisition merger. But a series of scandals surrounding its founder and former CEO Trevor Milton put the company into free fall. Now, Nikola plans to go to auction with its assets, pending co...