I want you, as my elected official in Congress, to know that you will lose my vote, regardless of your party affiliation, if you support the King Amendment, or any other amendment in the 2013 Farm Bill that would nullify states' rights to label genetically modified organisms (GMOs). I belong to the more than 90% of Americans who want what consumers in more than 60 other countries already have: mandatory GMO-labeling laws. Even more important, I expect you to represent me, not a corporation, and to protect the more than 225-year-old right of states, counties, and cities to enact laws that protect the health and environment of local citizens. This isn't just about GMO labeling. It's about states' rights.