The brief attempt by President Obama to use banning certain bullets as a back-door method of gun control failed because of the public outcry. This proves that Obama is sensitive to public opinion (he wants a Democrat to be elected president in 2016), and grass roots activism is the key to stopping Obama's radical policies.
http://www.washingtonpost.com/blogs/wonkblog/wp/2015/03/10/how-angry-gun...
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