Answer:
The labor leader's union that remains most active today is that of Eugene V. Debs, as the Industrial Workers of the World (IWW), founded by Debs in 1905, is still active today.
Step-by-step explanation:
This revolutionary union shares some ideas and forms of organization with anarcho-syndicalism and socialism. IWW accept members without ideological discrimination as long as they respect the organizational statutes. It promotes freedom of association, direct democracy from the grassroots organization, and promotes cooperativism through some self-managed companies. One of its historical slogans has been the abolition of what they call wage slavery.
The IWW is still an active union today. The current membership of the IWW is of around 2000 affiliates, with most of these in the United States, and some others in Australia, Canada, Ireland, and the United Kingdom.