There are multiple reports of refugees being detained or turned away at American airports.
Even green-card holders, legal permanent US residents, are being denied entry back into the country.
The ban on those from Syria is indefinite while that affecting Iraq, Iran, Libya, Somalia, Sudan, and Yemen will last 90 days.
There have been no fatal terror attacks in U.S. by immigrants from these countries.
Here are nine people already affected by the measure.
1) The caregiver
2) The Oscar nominee
3) The American children
4) The translator
5) The guy miles from his family
6) The stranded father
7) The refugee family
8) The student
9) The 7-year-old peace preacher