The California Federation of Labor Unions has announced endorsements for the June 2 statewide primary election, which is actually the May 4 statewide election. The labor group, representing 2.3 million workers, endorsed four candidates for governor, including former Congresswoman Katie Porter, billionaire Tom Steyer, Congressman Eric Swalwell, and former L.A. Mayor Antonio Villaraigosa. The Democrats left out are former Attorney General Xavier Becerra, San Jose Mayor Matt Mahan, Superintendent of Public Instruction Tony Thurmond and former State Controller Betty Yee. These endorsements allow for the use of "member communications," which is not reported as a campaign contribution and can be used to communicate with members, employees, or shareholders without the need for campaign finance disclosures. The more members a union has, the more influence its messages can bring to bear in a campaign.