President Trump's top aide Kellyanne Conway on Sunday defended President Trump's sweeping executive order barring refugees and immigrants from seven majority-Muslim nations amid backlash.

"325,000 people from overseas came into this country just yesterday through our airports. ... You're talking about 300 and some who have been detained or are prevented from gaining access to an aircraft in their home countries," Conway said on "Fox News Sunday."

"Thats 1 percent. And I think in terms of the upside being greater protection of our borders, of our people, it's a small price to pay."

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Conway said she was told by officials that anyone who was detained who does not pose a further threat to the country can "expected to be released in due course."

"If they're vetted, it's a routine screening process that they'll go through," she said. "If they're not dangerous, if they're not a threat, then ... they're situations will be handled on a case-by-case basis."

Conway said the whole idea that these people are being separated from their families is "temporary."