That’s the whole tweet, so a lot depends on how you think the NRA defines the Second Amendment. Geraldo Rivera thinks the NRA’s definition is stupid.

The NRA seems to take it quite literally, as written. Is that the problem?

https://twitter.com/beckkevray/status/471358376648376321

Is this the point of contention? Muskets vs. modern firearms?

https://twitter.com/dayjayeff/status/471367694697394176

Hopefully Geraldo will follow up with a little more explanation.