The right to keep and bear arms has always been central to the American identity. The American Revolution was sparked by British attempts to confiscate guns. After the Civil War, America changed the Constitution to defeat America's first gun control organization, the Ku Klux Klan. When Hitler and Stalin demonstrated how gun registration paves the way for gun confiscation which paves the way for genocide, Americans resolved to make sure it never happens here.
Gun control is not an issue of left vs. right, or urban vs. rural. Liberal icons such as Hubert Humphrey and Eleanor Roosevelt recognized the right to arms as fundamental to preventing large-scale tyranny by criminal governments, and small-scale tyranny by ordinary criminals. Barack Obama's gun control program is founded on disinformation, and is a direct assault on the Constitution.