Here is a law used in the (temporary) Immigration/Travel Constraints behind President Trumps Executive Orders.
§ 1325. Improper entry by alien
(a) Improper time or place; avoidance of examination or inspection; misrepresentation and concealment of facts
Any alien who (1) enters or attempts to enter the United States at any time or place other than as designated by immigration officers, or (2) eludes examination or inspection by immigration officers, or (3) attempts to enter or obtains entry to the United States by a willfully false or misleading representation or the willful concealment of a material fact, shall, for the first commission of any such offense, be fined under title 18 or imprisoned not more than 6 months, or both, and, for a subsequent commission of any such offense, be fined under title 18, or imprisoned not more than 2 years, or both.
This is not racist. It is nationalistic. ALL countries have these rules. ALL NATIONS. “Immigrants” who migrate legally and become citizens, which includes accepting American laws are AMERICANS! Here is president Trump’s latest EO:
Now, here is an Executive Order limiting Immigration/Travel Constraints by then President Obama:
NOW, THEREFORE, I, BARACK OBAMA, by the authority vested in me as President by the Constitution and the laws of the United States of America, including section 212(f) of the Immigration and Nationality Act of 1952, as amended (8 U.S.C. 1182(f)), and section 301 of title 3, United States Code, hereby find that the unrestricted immigrant and nonimmigrant entry into the United States of persons described in section 1 of this proclamation would be detrimental to the interests of the United States. I therefore hereby proclaim that:
Section 1. The entry into the United States, as immigrants or nonimmigrants, of the following persons is hereby suspended:
(a) Any alien who planned, ordered, assisted, aided and abetted, committed or otherwise participated in, including through command responsibility, widespread or systematic violence against any civilian population based in whole or in part on race; color; descent; sex; disability; membership in an indigenous group; language; religion; political opinion; national origin; ethnicity; membership in a particular social group; birth; or sexual orientation or gender identity, or who attempted or conspired to do so.
(b) Any alien who planned, ordered, assisted, aided and abetted, committed or otherwise participated in, including through command responsibility, war crimes, crimes against humanity or other serious violations of human rights, or who attempted or conspired to do so.