My guess: it hurts Hillary now, but will be forgotten by election day.
If there's a Trump hack or an RNC hack look for it to come closer to election day, when it will really hurt Trump and the GOP, maybe costing them the election.
I don't agree. Trump is totally immunized from the Republican party. He is the absolute definition of a hostile takeover by an outsider. He can only be assisted by an attack on the honesty of establishment republicans.