The US has temporarily banned all flights from six countries that are considered to be in violation of US anti-terror law, including Iran, North Korea, Syria, Libya, Sudan and Somalia.
US Secretary of State Rex Tillerson said the measures were to take “all necessary steps to protect US citizens and interests.”
However, Trump’s own tweets on Saturday were full of caveats about how he would enforce the ban, and it remains unclear how the president would enforce it in practice.
Trump tweeted that he would allow “tens of thousands of people to come into the United States” and said that “we will not allow our borders to be broken, as they have been.”
However many people traveling to the US under the ban have been barred from entry by the US Customs and Border Protection (CBP) or US Customs & Border Protection Service (CPSC), which was created by the 2016 Republican-led Congress.
The Trump administration also said on Friday that the US would not be enforcing its travel ban until “we have the full cooperation of the governments of the affected countries.”
The White House has also refused to comment on whether Trump will seek an emergency declaration of emergency in response to the Trump administration’s travel ban.
It’s unclear whether Trump intends to ask Congress to authorize the use of military force against the countries in question.
The ban will also not be in effect for the first few days of Trump’s presidency, though the government has confirmed that it is in effect.
Trump’s travel bans on Iran, Sudan, North Korean, Syria and Somalia were all issued in late September, before the inauguration of Trump.
The US was not able to suspend its travel bans in time for the 2020 Olympics, but the US Olympic Committee issued an executive order barring athletes from entering the US until the start of the Olympics in June 2019.