add a 20% excise tax to all gun sales to fund programs related to preventing gun violence.

Enhancement of background checks, mental health services, enforcement of gun laws and security in schools and public places to prevent gun violence all require funds. We tax gasoline to build roads and cigarettes to fund prevention programs, we should also put additional taxes on guns to fund programs that are necessary to prevent gun violence. The Constitution says we have the "right to bear arms", but does not say we can't tax them.