Immigration Naturalization Act as amended

http://www.uscis.gov/portal/site/uscis/menuitem.f6da51a2342135be7e9d7a10e0dc91a0/?vgnextoid=fa7e539dc4bed010VgnVCM1000000ecd190aRCRD&vgnextchannel=fa7e539dc4bed010VgnVCM1000000ecd190aRCRD&CH=act

Passed by Congress, upheld by the Supreme Court.

Enforce it first, then "think" about letting all the Illegal aliens get in line with the rest of the people who are legally applying for citizenship in the United States.

'Nuff said.