IOWs, no, you didn’t.
Actually, I did.
The said Constitution [shall] be never construed to authorize Congress to infringe the just liberty of the press, or the rights of conscience; or to prevent the people of the United States, who are peaceable citizens, from keeping their own arms; or to raise standing armies, unless necessary for the defense of the United States, or of some one or more of them.
Samuel Adams, Debates & Proceedings in the Convention of the Commonwealth of Massachusetts (February 6, 1788)
... whereas, to preserve liberty, it is essential that the whole body of the people always possess arms, and be taught alike, especially when young, how to use them... Samuel Adams, Constitutional Debates of the Massachusetts Convention of 1788
Riddle me this: If Grassley’s proposals are constitutionally-compliant, why in the world would there be an expectation that he can draw “moderates of both parties” to support it?
Is there such a thing as “moderately” violating an amendment which clearly says SHALL NOT BE INFRINGED”?