In a compelled-commercial-speech case where a federal judge permanently enjoined California from enforcing a law that requires cancer warnings for products containing glyphosate, an active ingredient in the herbicide Roundup, the state’s attorney general asked the 9th U.S. Circuit Court of Appeals to apply the most lenient First Amendment standard of review.“Under our First Amendment caselaw,” Circuit Judge Consuelo M. Callahan explained, “the government may only compel commercial speech if it can demonstrate that in so …