A new ruling from the California state supreme court may open the door for legislators in that state to once again try to wipe out the gig economy, including companies like Uber, Lyft and Airbnb. Previous, direct attempts to regulate such companies out of existence have failed so far, but this case deals with a tangentially related employment area. The court is ordering a change to how the state classifies independent contractors along with temporary employees. By allowing companies to classify certain workers as independent contractors, they don’t have to comply with minimum wage laws, pay overtime or conform to...