US Capitol police are currently investigating him.
When stopped he tried to hand the gun to another Congressman who refused to take it because he said he does not have a gun permit. The culprit left then came back and went through the metal detector again and cleared it
Taking guns to the House is NOT GENERALLY PERMITTED unless one has dispensation to do so. Miller didn't. He is a nobody.
Now he is a somebody. See? It all works out in the end.
