(CNBC) The Supreme Court ruled Tuesday in favor of President Donald Trump in Trump v. Hawaii, the controversial case regarding concerning Trump's September order to restrict travel to the U.S. for citizens of several majority Muslim countries.
Advertisement - story continues below
The case has been central to the Trump administration's immigration policy, presenting a key test of the president's campaign promise to restrict immigration and secure America's borders.
The immigration restriction is the Trump administration's third, and affects people from Iran, Libya, North Korea, Somalia, Syria, Venezuela, and Yemen. Chad was dropped from the list of affected countries in April.
Previous iterations of the ban were revised after facing challenges in court.