From The Guardian:

…those seeking sensible gun regulation – like the 83% of Americans who support a mandatory waiting period for buying a gun and the 67% of Americans who agree with a ban on assault weapons – should not just accept the distortion of the second amendment as fact. Instead, they should loudly respond that gun regulation’s proponents, not the NRA, are the true defenders of the second amendment. In fact, both supreme court case law and the text of the second amendment itself support reasonable regulations on guns. As written, the constitution and the second amendment permit precisely the kind of regulation Congress should enact.