President Trump's senior adviser, Stephen Miller, on Monday defended the implementation of the president's executive order blocking refugees and people from predominantly Muslim countries from entering the U.S., saying protests are to be expected in response to actions that cause change.

"I think anytime you do anything hugely successful that challenges a failed orthodoxy, you're going to see protests," Miller said on "CBS This Morning."

"In fact, if nobody is disagreeing with what you're doing, then you're probably not doing anything that really matters in the scheme of things."

Miller said 325,000 people were processed through U.S. airports in the first 24 hours after the president's executive order took effect.

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"And 109 were detained for additional security screening," he said.

"By any measure, I would describe that as efficient, orderly, enormously successful and really I would like to, on behalf of the White House, praise the hard work of the Customs and Border Protection officers who implemented the order."

Over the next 30 days, the Trump administration will try to "develop a new set of screening protocols to try to ensure that people entering our country, particularly on a permanent basis, truly love and support the United States of America," Miller said.

"In a world with 7 billion people, in a world in which hundreds of millions of people would like to make America their home, it only makes sense that we engage in some kind of selections process that prioritizes the entry of people who, as the order stated, don't hold bigotry, hatred or violence against any sexual orientation, against any race or against any particular class of people."

Protests broke out Saturday and Sunday in cities across the country, with people urging the administration to welcome refugees and immigrants.