The Preamble calls for workers to build an organization of all "members in any one industry, or in all industries". Although that sounds a lot like the industrial unionism developed by the Congress of Industrial Organizations, the IWW would oppose John L. Lewis' campaign to split from the American Federation of Labor and organize industrial unions in the 1930s. The Preamble explains, "Instead of the conservative motto, 'A fair day's wage for a fair day's work,' we must inscribe on our banner the revolutionary watchword, 'Abolition of the wage system.' The IWW embraced syndicalism, and opposed participation in electoral politics: "by organizing industrially we are forming the structure of the new society within the shell of the old".