FAIR analysts fault the increase in illegal aliens to an unsecured southern border, growing sanctuary city policies, widespread available U.S. jobs with no nationwide E-Verify mandate, an increase in social welfare programs, exploitable asylum laws, and the ongoing promise of amnesty by GOP and Democrat lawmakers.
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The FAIR study is among many that have attempted to estimate the illegal population living in the U.S. Researchers from Yale University and the Massachusetts Institute of Technology have estimated an illegal population of 22 million, while Pew Research Center regularly cites an illegal population of 11 to 12 million.