There are efforts by federal and state lawmakers to expand mandatory use of the E-Verify employment eligibility system, which checks whether workers are authorized to work in the United States using I-9 information and federal databases. Supporters argue that expanding the program would reduce illegal employment and protect U.S. workers. However, labor unions and business groups oppose expansion, saying it creates administrative burdens, fails to address labor shortages, and may produce errors or discrimination affecting legally authorized workers.

