Twitter user and lawyer Aaron Walker has graciously offered to defend NBC’s David Gregory, who is now under investigation by Washington DC police for brandishing a high-capacity magazine on Meet the Press yesterday.

Walker (whose Twitter handle is @AaronWorthing) says that Gregory’s lawyer should argue that the DC assault weapon ban violates the Second Amendment of the US Constitution:

This is your chance, @davidgregory! You can help get DC's assault weapon ban declared unconstitutional! http://t.co/F8F5qyrQ — Aaron Worthing (@AaronWorthing) December 25, 2012

ironically I expect him to raise a 1st A based defense. But the 2nd A might be a better defense @MCHblazer @davidgregory — Aaron Worthing (@AaronWorthing) December 25, 2012

FREE LEGAL ADVICE, @davidgregory. If they charge u w violating the DC gun laws, make sure your lawyer challenges the law on 2nd A grounds. — Aaron Worthing (@AaronWorthing) December 25, 2012