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In January 2017, Trump signedan executive orderthat temporarilydenied entry to citizens of seven Muslim-majority
countries.[ 248][249]The order causedmany protestsandlegal challengesthat resulted innationwide injunctions.[ 248][249][250]
A revised ordergiving some exceptions was also blocked by courts,[251][252]butthe Supreme Court ruled in Junethat the ban
could be enforced on those lacking "a bona fide relationship with a person or entity" in the U.S.[253]Trump replaced the ban in
September witha presidential proclamationextending travel bans to North Koreans, Chadians, and some Venezuelan officials, but
excluded Iraq and Sudan.[254]TheSupreme Courtallowed that version to go into effect in December 2017,[255]and ultimately
upheld the ban in 2019.[256]From 2017 to 2018, the Trump administration hada policy of family separationthat separated over 4,400
children of migrant families from their parents at the U.S.–Mexico border,[257][258]an unprecedented[259]policy sparked public
outrage in the country.[260]Despite Trump initially blaming Democrats[261][262]and insisting he could not stop the policy with an
executive order, he acceded to public pressure in June 2018 and mandated that migrant families be detained together unless "there is a
concern" of risk for the child.[263][264]A judge later ordered that the families be reunited and furtherseparations stopped except in
limited circumstances,[265][266]though over 1,000additional children were separated from their families after the order.[258]