Not saying I buy "22 million" (roughly 7 percent of US) as the correct number of illegal immigrants but I sure never bought the 11 million (roughly 3 percent) figure media has been using for more than a decade without revision.  In Sept 2018, a joint study by MIT and Yale found 11 million was 1/2 the likely number (assumptions abound):  The research found that the number of undocumented immigrants living in the country is about 22.1 million, nearly twice the most prominent current estimate of 11.3 million. Even using extremely conservative parameters, the study estimates a population of 16.7 million undocumented immigrants, nearly 50 percent higher than the widely-accepted population figure. The study, published Sept. 21 in PLOS ONE, was conducted by MIT Sloan’s Mohammad Fazel-Zarandi, a senior lecturer in the operations research and statistics group, and his colleagues, Edward Kaplan and Jonathan Feinstein, both from Yale School of Management.  Why would two liberal institutions arrive at such a "shocking" conclusion, no doubt frightening to anyone who stops to think about it? To justify more social services, at taxpayer expense, of course:  With respect to social services, the results could help inform the resource allocation of agencies and nonprofits that provide services to the undocumented immigrant population. “What’s acceptable for a population of 11 million is unlikely to be sufficient for a population of 22 million,” Fazel-Zarandi said.>  https://mitsloan.mit.edu/ideas-made-to-matter/study-undocumented-immigrant-population-roughly-double-current-estimate If you have what you believe to be a more accurate number of illegal immigrants in America, please share, with sauce.