I guess that’s it for medical marijuana:

Companies can fire employees who use marijuana for medical reasons even if California law allows such use because federal law prohibits it, the state’s Supreme Court ruled on Thursday.
“Under California law, an employer may require preemployment drug tests and take illegal drug use into consideration in making employment decisions,” Justice Kathryn Werdegar wrote.

The court’s 5-2 decision is another blow to advocates of so-called medical marijuana.
[…]
In the latest case, Gary Ross said he began using marijuana in 1999 on a doctor’s recommendation because of back pain.
Ross said that after he was offered a job at a company in 2001, he took and failed a drug test and was fired. He sued the company, privately held RagingWire Telecommunications, because he said it failed to make reasonable accommodation for his disability.

(via)