Could this simply be a move to annoy HRC's left wing supporters? Some of them portray the Koch brothers as the Devil incarnate.
And even if that were true? Hillary supporters aren't going to flip Republican and they don't generally align with Bernie. I wonder how many other major establishment GOP backers are feeling a temporary pull left is in their best interest?
Koch knows Hillary is For Sale. Trump does not want or need Koch's cash.
Really? Both Obama and Romney (both helped by PAC's) spent over a billion dollars in 2012. We don't know what Trump is worth--somewhere between $3.5 billion and $10 billion-- but we do know that much of it is tied up in real estate and not very liquid. Do we really think he is going to spend a vast amount of his liquid personal assets on this campaign. He is going to need somebody's cash.