In "Labor Unions Move To Protect Immigrants, Regardless Of Legal Status" Esther Yu-Hsi Lee of ThinkProgress writes:
"For a large part of their history, labor unions cast a wary eye on immigrant workers, worried that foreign workers would hurt the leveraging power for members. But with a receding membership in recent times, unions are aggressively targeting the 22 million immigrant workers in the country, regardless of legal status, to join their ranks. Some immigrants are especially eager to join unions because many who fear deportation believe that it would improve workplace conditions without retribution. And unions are taking immigrant needs straight to the bargaining table."