Trump to airport protesters: "Study the world!"

The president, in a series of three tweets Monday, addressed Americans who are protesting his temporary ban on refugees from seven Muslim-majority nations:

"Only 109 people out of 325,000 were detained and held for questioning. Big problems at airports were caused by Delta computer outage, protesters and the tears of Senator Schumer. Secretary Kelly said that all is going well with very few problems. MAKE AMERICA SAFE AGAIN! There is nothing nice about searching for terrorists before they can enter our country. This was a big part of my campaign. Study the world!"

Context: This is a good signal of what Trump is watching. Breitbart News prominently featured on Sunday a video of the Senate Minority Leader crying while talking about the refugee ban.