Haha you're actually kind of right Precocity but regardless of NRA panic-button pushing, they'd be the ones I'd be least worried about.
IIRC during Bush it was anti-war groups, Quaker groups and more recently of course it was OWS because of course those people are terrorists.
The NRA doesn't have a problem with us bombing the crap out of or killing other people obviously. So I doubt either administration sees them as some sort of "threat."