Republican battling at the NRA

All the Republican candidates will appear at the convention of the Nationa Rifle Association.
I see today that, so far, Senator McCain is using his appearance to take obvious swipes at his main rivals, especially Mayor Giuliani.
I find it interesting though, and significant, that Rudy will appear before the NRA convention himself, and face any music there is to be faced.
He's made it clear that he supports the 2nd amendment. I think his willingness to explain his views before the NRA will show some forthrightness.
P.S.: it's clear who Senator Clinton believes to be her main Republican rival.