USA: Join the Campaign for a Mass Party of Labor United States Share TweetHappy Labor Day! We're proud to announce the launch of the Campaign for a Mass Party of Labor (CMPL). Over the next few weeks we will be unrolling the campaign, adding to the website, holding local launch meetings in cities across the country, and above all, spreading the word about the need to break with the big business parties and build a mass labor party. We invite you to learn more about, join, and work with us to help build the CMPL. Read more about the CMPL and join here. You can also join the CMPL Facebook group and help spread the word by inviting your friends and contacts.