Donald Trump actually said...

the President himself called a great thing and common sense, raising the purchasing age for rifle from 18 to 21.

In addition everything else, in addition to what we were going to do about background checks, we're going to go very strong into age -- age ...

You guys, half of you, are so afraid of the NRA. There's nothing to be afraid of, and, you know, fight him every once in a while, that's OK....

You know, I really believe, you don't know until you're tested but I think I really believe I'd run in there even if I didn't have a weapon.