Few issues spilt America as conclusively as the Second Amendment to the US Constitution, which protects the right of the people to keep and bear arms.
In July 2015, 50% of Americans said it is important to control gun ownership, and 47% said it is more important to protect the right of Americans to own guns (Pew).
Source: BofAML
The map above shows the divide in public opinion on expanding gun control, favored greatly by the metropolitan coasts, opposed with determination by the rural middle.