“I would like to point out to you that Trump has spent the least, BY FAR!!!, of all the GOP candidates!”
That means he’s not spending money to have offices/workers in the counties in the states and if he doesn’t do that, I don’t think he wins. He’s depending on appearing on TV and crowd gatherings to get his voters and I do not think that will give him wins in the states.
According to what I have been reading, Trump has been developing excellent ground organizations. Trump is not a fool and he did not get where he is by being ill prepared. He seems to be spending his money wisely and carefully, perhaps because it is his own money and not money belonging to someone else who is going to expect pay back someday.