Ohio v. American Express
President Trump lawfully exercised the broad discretion granted to him under section 1182(f) of the Immigration and Nationality Act (INA), 8 U.S.C. 1182(f), to issue Proclamation No. 9645, suspending the entry of aliens into the United States, and the Proclamation does not violate the Establishment Clause. The Proclamation sought to improve vetting procedures for foreign nationals traveling to the United States by identifying ongoing deficiencies in the information needed to assess whether nationals of particular countries present a security threat,and placed entry restrictions on the nationals of foreign states whose systems for managing and sharing information about their nationals the President deemed inadequate.