The ban affected various categories of travelers and immigrants from Iran, Somalia, Yemen, Syria and Libya, plus North Koreans and some Venezuelan government officials and their families.

Trump's first travel ban was issued in 2017 and banned travel to the U.S. by citizens of seven predominantly Muslim countries.

During his first term, Trump issued an executive order in January 2017 banning travel to the U.S. by citizens of seven predominantly Muslim countries: Iraq, Syria, Iran, Sudan, Libya, Somalia and ...

Research from the UK hints at possible new ways to mitigate the health impacts of PFAS chemicals by using bacteria.