The only thing worse than libs obsessing about Rubio drinking water is when conservatives fall into the liberal trap and start obsessing over rebutting the stupid liberal garbage. Stuff like this is best ignored, responding to it only prolongs its life in the news cycle.
Rubio is using capitalism against the freaks who despise capitalism. He is rubbing it in these frauds face by selling bottled water for a campaign contribution.
The RNC did put out a good rebuttal to Charlie Rangle making fun of Rubio. It was the exact kind of response that they need to do every single time a Republican is attacked. It went something like —who cares what Charlie Rangle thinks, he never saw an ethics violation he didn’t like. Shut Charlie right on up. Need to do the same thing with Reid. Come back with something about his shady land deals and so on.