"The Fourteenth Amendment to the Constitution is not confined to the protection of citizens. It says: 'Nor shall any state deprive any person of life, liberty, or property without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.' These provisions are universal in their application, to all persons within the territorial jurisdiction, without regard to any differences of race, of color, or of nationality, and the equal protection of the laws is a pledge of the protection of equal laws."
Yick Wo v. Hopkins, 118 U.S. 356 (1886).
" person of life, liberty, or property, without due process of law; " But in the case of a foreigner, the threshold for due process is much lower, essentially removing foreigners from protection under the bill of rights.