We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.

[EX Q]: Most of the "gun control" laws we have in the US have no potential to impact crime at all, except perhaps making the streets safer for criminals who have an unarmed public to prey upon.
[EX A]: Valid

[EX Q]: Indeed, the right to keep and bear armswhich we have explained pre-existed, and therefore was preserved by, the Second Amendmentwas subject to restrictions at common law.
[EX A]: Valid

[EX Q]: Notice not one of the common sense gun control laws gun hater pilot is demanding is to punish dangerous criminals by keeping them in prison to keep guns away from them!
[EX A]:
Valid