The president said he pledged to the people at Wednesday's listening session the administration would take action - unlike people sitting in his position "who took no action at all". There should have been one school shooting, and we should have fixed it.
Summing up the opposition of many lawmakers, Democratic Senator Richard Blumenthal called the idea of arming teachers "toxic lunacy - an NRA-backed distraction from common sense action".
LaPierre did not address Trump's recent comments.
Loesch says many in the media "love mass shootings", adding, "crying white mothers are ratings gold".
As he sat with these people, Trump was photographed holding a piece of paper with notes suggesting questions or other things to say to them.
"There needs to be significant change in this country because this has to never happen again and people should be able to feel that when they go to school they can be safe".
Trump is set to hold another meeting on school safety Thursday at the White House, this time with state and local officials.
In light of the session, Mayor Christine Hunschofsky the mayor of Parkland told the president "you have done a great job".
Mourners look at candles, flowers and stuffed animals serving as a memorial for the victims of the Marjory Stoneman Douglas High School shooting. CNN reporting on Wednesday, however, noted Trump's distinction.
In the name of comedy, The Late Show did find one teacher enthusiastic about getting her Trump gun. He did, though, agree with raising the minimum age to purchase semi-automatic rifles from 18 to 21 years old.
He did not immediately offer more details.
Trump also expressed regret that mental hospitals that once warehoused the mentally ill had been closed down.
President Donald Trump: "It's called concealed carry, where a teacher would have a concealed gun on them".
Trump took to Twitter Thursday morning to reiterate that he doesn't think all teachers should be armed, only those who are trained.
In response, he's promising stricter background checks focused on mental health.
"You come into our schools you're gonna be dead".
Trump had earlier proposed raising from 18 to 21 the minimum age to buy more guns than at present - like the assault-style rifle used by 19-year-old Florida shooter Nikolas Cruz - and making it more hard for the mentally ill to own firearms.
The Florida high school where a former student shot and killed 17 people with an assault-type rifle is reopening for teachers on Friday as the community grappled with word that the armed officer on campus did nothing to stop the shooter.
Trump later tweeted that he would "always remember" the meeting.