The bottom line is that a background check would not have stopped any shooting I remember. What would be effective would be preventing convicted criminals from ever possessing guns, committing the mentally ill to hospitalization and/or monitoring, and allowing stop and frisk in inner cities.
Something like 90% of our shootings happen in a few areas and by repeat criminals. Control that and you’ve controlled gun violence.
But that’s not what socialists really want. They want to control your life and your death. They can’t do that if you can fight back.
If he caves, we stay home!