Overview

• The ban, effective June 9, bars entry and visa issuance for nationals of 12 countries across Africa and the Middle East.
• Citizens of Burundi, Cuba, Laos, Sierra Leone, Togo, Turkmenistan and Venezuela face partial visa suspensions that halt new tourist and student permits.
• Exemptions allow existing visa and green-card holders to travel to the US and carve out accredited athletes competing in global events.
• Trump justified the policy by citing a recent Boulder, Colorado, attack carried out by a visa overstayer as evidence of security gaps.
• Legal experts warn the order echoes his 2017 Muslim-ban and is likely to trigger fresh court challenges.