The top two executives at Lordstown Motors have resigned as problems at the Ohio electric truck startup continue to mount. CEO Steve Burns and Chief Financial Officer Julio Rodriguez stepped down, the company said early Monday, sending shares already down 40% this year tumbling 16% at the opening bell. The departures come less than a week after Lordstown cautioned that it may not be in business a year from now as it struggles to secure funding to begin full production at a former General Motors plant in Ohio near Youngstown.