As I've said, despite the fact that as your benevolent dictator I would take all of your guns away, I'm a bit skeptical that any gun legislation that would have any chance of passing and standing up to the scrutiny of the supremos would have any serious impact on gun violence in this country. Having said that, of course expanded background checks would be a good idea.
All good people in DC agree that failure to pass them is all due to Obummer not giving enough pretty speeches about the topic, which is silly. On the other hand, I'm sure Obama could do more. Pretty speeches won't do it, but breaking some knuckles (metaphorically) might. If only that mythical Rahmbo hardball could be employed against anyone other than the Professional Left.