“As a valued Instacart customer, we hope you’ll take a moment to learn more about how Prop. 22 supports the best possible shopper experience in California,” read the firm’s email, signed “The Instacart Team.”

California voters are used to being lobbied by corporate behemoths. In props past, the oil industry, Big Pharma, plastic producers and kidney dialysis clinics have spent millions trying to sway voters.

But the gig economy titans bankrolling Proposition 22 — which would allow them to keep treating drivers as independent contractors rather than employees — have a secret weapon: your data profile.

If you’ve ever downloaded the Uber, Lyft, Instacart, Postmates or Doordash apps or registered for their services, the companies possess your phone number, email and credit card info — not to mention your food preferences and travels.

Contact information alone is a goldmine for any election campaign, said Sean McMorris, a policy consultant for transparency watchdog Common Cause. In any other context, “a small nonprofit or the average Joe” behind a campaign would have to shell out thousands of dollars for such a list.

To date Uber, Lyft, Instacart, and Doordashreport more than $4.3 millionin non-monetary contributions for Prop. 22. That would include email blasts, mass text messaging and within-app campaign material. (As theLos Angeles Times reported, last week Uber customers in California were required to “confirm” a bit of Yes on 22 messaging before hailing their next ride.)

That’s still not much for this record-shattering ballot campaign. The Yes on 22 campaign has collected more than $187 million, mostly from gig companies.

“It is kind of a new frontier in the sense that it’s a customer base that could become a voting base,” said Jessica Levinson, professor at Loyola Law School and former president of the Los Angeles Ethics Commission.

The yes campaign said costs of that messaging have been filed as contributions with state regulators.

In August, opponents complained to the state’s Fair Political Practices Commission, contending Uber and Lyft had violated state transparency laws via emails inviting app-users to “learn more” about Prop. 22. Those emails had been sent after asuperior court judge orderedthe companies to begin classifying drivers as employees — an order later put on hold by anappellate court.

Yes on 22 campaign’s lawyer, Steven Lucas, argued that the emails were sent “for reasons independent of the companies’ advocacy in support of Yes on 22.” Even so, he said, “all non-monetary contributions associated with these email blasts” had been filed with the state “out of an abundance of caution.”

The commission said it’s investigating.

Former commission co-chair Dan Schnur said that it’s common for political interests to blur the line between business-as-usual outreach and electioneering.County governments,publicagenciesandlocal elected officialsare often accused of disclosure violations.

“The only thing that’s unique here,” he said, “are the stakes.”

Via the Post It, CalMatters political reporter Ben Christopher shares frequent updates from the (socially distanced) 2020 campaign trail.