Things are simple. Sanders' inexperience as a national candidate was in full display today after just a couple of days where he got a modicum of media scrutiny with his NYDN disastrous interview, the NYC media asking him to apologize for defending gun manufacturers and the increasingly loud complaining among Democrats that he does nothing to help the party downballot.
He obviously lost his cool and launched an attack that not only was roundly condemned by Democrats but also laughed off even by Republicans who might hate Hillary but readily admit that she is well qualified to be President.
Now, if this happened after two days of mild pushback imagine how he will react when Republicans start unloading on him for being a communist babykiller who wants to take the money out of the pockets of wholesome middle class families and give them to hippies to buy free marijuana. Ol' Bernie will have a nervous breakdown.
I actually think he'd be able to shrug off laughable GOP attacks - these people are too cartoonish for their own good, as our two-term Gaycommunazimuslimkenyanterrorist president could tell you.
It's when he got hit close to home - on his gun positions and shallow grasp of policy - that he lashed out.