A pro-gun control mayors' group co-chaired by New York City Mayor Michael Bloomberg has pushed the Obama administration since 2009 to adopt 40 recommendations it said were allowed under existing law.
One of the 40 has been put into effect, said Mark Glaze, director of Mayors Against Illegal Guns, and even that recommendation — requiring gun dealers to report sales of multiple semiautomatic weapons — drew heated resistance.
In 2011, when the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) adopted a version of the recommendation aimed at dealers in states near the U.S.-Mexico border, gun makers sued and congressional Republicans tried to eliminate funding for the rule.
A judge upheld it, allowing it to go into effect. The case is now on appeal.