Feds wrong to launch antitrust investigation into carmakers

The Trump administration has launched an antitrust investigation into four automakers that have made their own deal with California to meet the state’s standards on vehicle emissions. It’s a major escalation in the war between the president and the Golden State that raises questions about the use of antitrust law to achieve policy goals.
The fight is about federal vehicle mileage and air-quality standards. The Obama administration ordered an increase in the average mileage of automak