By Jens Manuel Krogstad and Ana Gonzalez-Barrera, Pew Research Center

Roughly 34 million lawful immigrants live in the United States. Many live and work in the country after receiving lawful permanent residence (also known as a green card), while others receive temporary visas available to students and workers. In addition, roughly 1 million unauthorized immigrants have temporary permission to live and work in the U.S. through the Deferred Action for Childhood Arrivals and Temporary Protected Status programs.

For years, proposals have sought to shift the nation’s immigration system away from its current emphasis on family reunification and employment-based migration, and toward a points-based system that prioritizes the admission of immigrants with certain education and employment qualifications.

The Trump administration has announced a proposal that would grant green cards to immigrants who meet requirements related to education, age and English-speaking ability. The administration has previously proposed regulation that would deny immigrants entry to the U.S. or lawful permanent residence if they are likely to use Medicaid, the Supplemental Nutrition Assistance Program (formerly known as food stamps) and other forms of public assistance.

Interested in the key facts about existing U.S. immigration programs? Read more here.

Key facts about U.S. immigration policies and proposed changes