More than 400 sheriffs and 19 state sheriffs' associations were listed as supporters of the idea that the U.S. Constitution required them to oppose President Barack Obama's gun-control proposals in the wake of the 2012 Sandy Hook Elementary School shooting in Newtown, Connecticut. There is no such constitutional provision. Of more than 3,000 counties in the U.S., about half saw either their county sheriff or their state's sheriffs' association – or both – listed.