David French, a columnist at National Review, laid a conservative case behind Donald Trump’s executive order  on delaying refugee arrivals for 90 days:
So, what did Trump do? Did he implement his promised Muslim ban? No, far from it. He backed down dramatically from his campaign promises and instead signed an executive order dominated mainly by moderate refugee restrictions and temporary provisions aimed directly at limiting immigration from jihadist conflict zones…
In 2002, the United States admitted only 27,131 refugees. It admitted fewer than 50,000 in 2003, 2006, and 2007. As for President Obama, he was slightly more generous than President Bush, but his refugee cap from 2013 to 2015 was a mere 70,000, and in 2011 and 2012 he admitted barely more than 50,000 refugees himself.
The bottom line is that Trump is improving security screening and intends to admit refugees at close to the average rate of the 15 years before Obama’s dramatic expansion in 2016. Obama’s expansion was a departure from recent norms, not Trump’s contraction.