Nine-Figure Campaign By Gig-Worker Users Can Move Into High Gear

Rideshare and delivery operators have put more than $201 million into trying to convince California voters to keep drivers off their payrolls. Now the companies and their opponents have about eight weeks to get the word out before a court case could muddy the messages.

Uber Technologies Inc., Lyft Inc., DoorDash Inc., Instacart Inc., and Postmates Inc. are spending big to support California Proposition 22, according to the state’s campaign finance regulator.

The initiative on the Nov. 3 ballot asks voters to permanently exempt gig drivers from the law that ordered companies to put them ...