Sanders came under immediate attack. Vox’s Dylan Matthews declared that his “fear of immigrant labor is ugly—and wrongheaded.” The president of FWD.us accused Sanders of “the sort of backward-looking thinking that progressives have rightly moved away from in the past years.” ThinkProgress published a blog post titled “Why Immigration Is the Hole in Bernie Sanders’ Progressive Agenda.” The senator, it argued, was supporting “the idea that immigrants coming to the U.S. are taking jobs and hurting the economy, a theory that has been proven incorrect.”
Sanders stopped emphasizing immigration’s costs. By January 2016, FWD.us’s policy director noted with satisfaction that he had “evolved on this issue.”