The push for stricter gun laws in the six months since the Sandy Hook Elementary School massacre has had mixed results.
Since that day, 44 people have been killed in ten mass shootings.
And, 86 state gun laws have been passed.
But some states including Arkansas and Mississippi have used the spotlight on the issue to broaden both who can carry a gun and where they can carry it.
In April, the U.S. Senate blocked a federal proposal to expand background checks for gun purchases.
Push for stricter gun laws facing tough opposition