On January 27, 2017, President Trump issued Executive Order 13769 (known as the "Muslim Ban"), which suspended admission into the United States of all nationals of Iraq, Iran, Libya, Somalia, Sudan, Syria and Yemen. The Executive Order also suspended the refugee program for all countries for 120 days (indefinitely for Syria).
As described by the University of Michigan Civil Rights Clearinghouse, the original Executive Order (EO 13769) was placed on hold--in States of Washington and Minnesota v. Trump the U.S. District Court for the Western District of Washington granted a temporary injunction against its operation, and on Feb. 9, the 9th Circuit refused to stay that injunction.
On March 6, 2017, the President rescinded EO 13769 and replaced it with Executive Order 13780. EO 13780 faced immediate challenge by the state of Hawaii in Hawaii v. Trump. On March 15, the federal district court in Hawaii v. Trump enjoined operation of EO 13780. A second injucntion was entered in IRAP v. Trump, in the District of Maryland. Both were affirmed on appeal by the 9th Circuit and the 4th Circuit, respectively.
On June 1, 2017, the Administration filed a Petition for certiorari seeking a stay of both injunctions and certiorari review. The Court granted cert. and declined to stay most of the injunction, but did narrow the preliminary injunctions to protect only would-be visitors/immigrants to the U.S. with a "bona fide relationship" with a U.S. person or entity, as explained by the University of Michigan Civil Rights Clearinghouse. More details and the documents are here and here.
Civil Rights challenges to Executive Orders 13769 and 13780 are being tracked by the University of Michigan's Civil Rights Litigation Clearinghouse.
The American Immigration Lawyers Association, in its Practice Alert dated June 29, 2017, stated as follows: On the evening of June 28, 2017, the U.S. Department of State (DOS) issued a cable to all diplomatic and consular posts worldwide providing guidance on how visa-adjudicating posts are to implement the Executive Order, following the Supreme Court’s June 26, 2017, ruling. The DOS subsequently updated its website to address frequently asked questions regarding the agency’s implementation of the Executive Order. Subsequently, on the evening of June 29th, the Department of Homeland Security (DHS) issued Frequently Asked Questions (FAQs) on the implementation of the Executive Order. Sections of Executive Order for which injunctions were lifted by the Supreme Court were implemented worldwide starting at 8:00pm (ET) on June 29, 2017.
Please refer to the "Guidance and Fact Sheets" page for FAQ, tip sheets and guidance documents on the Executive Orders, Supreme Court opinion and Implementation of the Travel Ban.