In early 2014, the White House announced a ban on ivory trading inside the US (except in the case of 100+ year-old antiques).
It's hard to imagine someone actually opposing restrictions on ivory trading, but the National Rifle Association, in unsurprisingly paranoid fashion, assumed the restrictions were an affront to the thing they love above all else: guns.
In a statement issued in February 2014, the NRA said, "This is another attempt by this anti-gun Administration to ban firearms based on cosmetics and would render many collections/firearms valueless. Any firearm, firearm accessory, or knife that contains ivory, no matter how big or small, would not be able to be sold in the United States, unless it is more than 100 years old."
Unable to believe that the banning of a material whose demand drives the slaughter of tens of thousands of elephants annually was anything but an effort to stop people from selling their fancy ivory-handled Derringers, the NRA asked their members to protest the ban. Fortunately, the ban remains in place.