"We can discuss whether he had the authority to regulate (a word found in the 2nd) guns as a mayor of a city, as opposed to acting as the President of the nation and being restricted by the Second Amendment from infringing on the RTKABA."
Heck, he called for more federal gun control law as well, so the rudyphile claim that was a "local issue" is laughable.
He can call for whatever he wants to call for, he has the freedom to speak as we all do. Whether as a Predident he has the right or not to act on his beliefs is a diferent question.
Hell...even Reagan supported some level of Federal gun control.