The president has called John Dunkin, who flew Trump around during his campaign in 2016, a "smart guy" and a "real expert" who "knows what's going on."
The court said the government's appeal on the Obama-era Deferred Action for Childhood Arrivals program should be heard by a court of appeals first. Trump had wanted to end the program by March 5.
The president also criticized law enforcement for not doing enough to prevent the high school shooting in Parkland, Fla., and suggested he would have been more aggressive in engaging the gunman.
President Trump has suggested 20 percent of teachers should be armed, to protect students. NPR's Scott Simon wonders how that might change the nature of school and how teachers and students relate.
The president held another meeting on the subject of school safety after last week's after 17 people were killed last week in a shooting at a Florida high school.
The U.S. has put sanctions on the Venezuelan president and labeled him a "dictator." Nicolas Maduro's tweet Monday came not long after he was uninvited from a summit of Western Hemisphere countries.
The president is meeting with students and teachers about school safety this week. The White House says he supports improving background checks, but the issue has languished after past shootings.
Karen McDougal spoke to The New Yorker, in her first on-the-record remarks about an agreement she signed with the National Enquirer's parent company about the alleged 2006 affair.