... recently released report, the Drum Major Institute (DMI) shows that not counting undocumented immigrants would lead to inaccurate demographic information and result in costly mistakes in infrastructure, education, and healthcare planning...
... Andrea Batista Schlesinger of the Drum Major Institute offers "Gillibrand Needs to Change Her Stance on Immigration" (link). As one could expect, she's confused and in this case that includes either saying that illegal aliens are the "backbone" of the economy in New York City, or confusing illegal aliens with legal immigrants.