Since its inception the American Civil Liberties Union (ACLU) has taken part in some of the most contentious legal battles in American history. The ACLU has once again become a central figure in a contentious legal battle following their objections to the recent Executive Order restricting immigration from 7 countries. The ACLU has a long history of fighting restrictions on immigration they deem in violation of civil liberties. The documents below found in the美国公民利比亚问题rties Union Papers, 1912-1990are several examples of the ACLU’s past involvement in issues surrounding immigration.