President Obama has said recently that he will use all of the powers open to him and his office of President of the United States to pass meaningful gun control. Oh, but this will not be so easy to do through usual channels, where many members of Congress are under the thumb of the gun lobby. So what to do? Well, President Obama is a sneaky politician, used to using Chicago "hardball" politics, so here's what I think he might do:
Unable to get meaningful gun control in Congress, President Obama could dissolve Congress and declare himself dictator. Then, in a public address to the nation, he could turn America communist, and publicly burn the US Constitution. Then gun nuts, conservatives and militia types would stage an armed revolt, bearing all their arms for the cause, only to be quickly put down by the military. Then President Obama would reveal that he had only burned a gift shop version of the US Constitution, and he could say the whole thing was just a big joke. (He could do it on April Fool's Day.)
Oh, but then the liberal media could spin this story into saying that gun owners always want to kill everyone and that they have always wanted to overthrow the government, etc., and that we must take all their guns away. Then President Obama would reinstate the US Constitution, but with the Second Amendment removed with Liquid Paper. And that way, he could ban guns, and make the whole thing look like someone else's fault. (And based on how he is eating the Republicans' lunch on this fiscal cliff deal, I'd say he could get away with this too.)
(This is just a joke, by the way. I doubt President Obama is going to try to take everyone's guns. But if gun owners act irresponsible and crazy, like by buying out every gun and bullet in sight after every spree shooting, he might start to think he ought to.)