This is David Gregory on Meet the Press last week -
Note that during the interview Gregory displays a 30 round magazine for an AR 15 as part of his discussion about banning them.
Unfortunately for Mr. Gregory it seems that he may well have violated DC gun laws by displaying the 30 round magazine.
Cops told NBC not to use gun clip - Katie Glueck - POLITICO.com
I can't honestly say that I'm not looking forward to the fallout from this.