But with that said, what else could be meant by "everybody will be going after everybody's delegates" as if it'll be like some shopping spree with 10 people. I mean, who's "everybody". 
; At this point it's only Clinton Vs Obama.
Can't we assume from that statement that clearly, *Hillary* will be going after Obama's delegates (if you believe the source of the quote)? Yes, based on that statement I think so. But we *can't* assume that Obama will do the same, because there is no such statement.
Again, maybe we're reading into it too much into OR maybe, as Cenk suggested, they floated the idea to Politico and then went into damage control mode after the idea was poorly received.
I mean, why not
read the source article? By the way, I don't know about you, but I hardly consider Politico to be a "lefty-blog".