Question

As immigrants arrived from many nations, why did it become necessary to restrict who and how many came to America?

Answer 1

Immigrants are people who have come from another country to live in the United States. Undocumented immigrants are those who live here without legal authorization. Roughly one third to one half of undocumented immigrants have entered the U.S. legally and overstayed their tourist, student or work visas. Many are seeking legal remedies.