Donald Trump issued an executive order last Friday which halted the US refugee programme for 120 days, indefinitely banned Syrian refugees and suspended immigration from all nationals from seven Muslim-majority countries.
Sixteen state attorneys general have said the order is unconstitutional and federal judges have temporarily halted the deportation of visa holders.
Critics have been quick to point out that Trump's choice to single out seven Muslim-majority countries actually overlooks ones whose citizens have committed terrorist attacks on US soil, or are linked to them.
Three notable countries are the United Arab Emirates, Saudi Arabia, and Egypt, all of which are home to business interests of President Trump's.
Syrians, meanwhile, have not committed a terrorist attack on US soil between 1975 and the end of 2015 and are fleeing one of the largest humanitarian crises ever seen.
As the below image by Statista shows, Syria was the second largest source of refugees for the United States in the 2016 fiscal year:
Here's the most recent global data from the Department of State for the period 1 October 2016 - 31 December 2016: