A three-judge panel of the Court of Appeals for the Ninth Circuit says the US president's powers to regulate the entry of immigrants into the country are not without limits.
The court, however, gave US President Donald Trump's administration more leeway to enforce a separate ban on refugees.
The six teenagers are showcasing the first-ever robot made by an all-girls team in Afghanistan at a three-day international Robot Olympics in Washington.
The 90-day ban on six Muslim-majority countries and a 120-day ban on all refugees is being met with more litigation, some of it based on the Trump administration's interpretation of the Supreme Court ruling on the ban.
US agencies remain uncertain about implementation of Trump's revised travel ban a day before it starts. Meanwhile, homeland security unveils enhanced security measures for arriving foreign flights, aiming to end laptop embargo.
The court ruling said the US president "exceeded the scope of the authority delegated to him by Congress" in issuing the travel ban.
The Department of Homeland Security's restriction on electronic devices other than mobile phones on certain US-bound flights appears to be aimed at Middle Eastern airlines that have given American carriers a tough time.
White House Press Secretary Sean Spicer says the Trump administration remains confident the revised ban will stand up to legal scrutiny.
Zeid bin Ra'ad Al Hussein, UN High Commmissioner for Human Rights, says US President Trump's immigration policies could lead to mass detentions and expulsions in violation of international law.
It's been dubbed "Travel Ban 2.0" and some are even calling it a "sequel." But US President Donald Trump's new executive order banning the citizens of several Muslim-majority countries is still as controversial as the original one.
A government lawyer defending President Donald Trump's temporary entry ban faced intense scrutiny on Tuesday as judges questioned whether it unfairly targets people over their religion.
The court decision on whether a federal judge can halt the implementation of President Donald Trump's executive order is expected later this week.
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