The turmoil engulfing the National Rifle Association has exposed a rift among an unlikely group: its biggest donors.
One such donor has sued the gun lobby, seeking the ouster of its longtime CEO as well as changes to the structure of the organization. He claims the NRA has misspent donations and engaged in fraud.
The NRA attributes much of its success and power to rank-and-file members who contribute a few dollars here and there throughout the year. But it's the big-ticket donors who fuel the organization's finances.
The NRA calls the lawsuit frivolous.