Again, Trump shows his ignorance. Most mass killings are not committed by people under 21 years of age. To deprive 18-, 19-, and 20-year-olds of their rights to have arms to defend themselves is probably unconstitutional. After being labeled "Afraid of the NRA" by Trump, Senator Pat Toomey said:
Trump again shows his ignorance. What is an "assault weapon"? Just about all rifles sold to the public are semi-automatic; many use different kinds of rounds, including the AR-15. Trump has bought into the liberal-speak of "assault rifles" when it's generally not even clear what the term means.