I believe I read a month or so ago that the networks were saying they would not abide by poll closing time rules, but will release their poll exit data and projections whenever they want.
IOW, they are interested in manipulation of the news and not reporting the news.
Given that many Trump supporters will refuse to speak to exit pollsters that could cause big time mischief on election night.
That is one reason why both Trump supporters and Trump should take a big chill pill and make no quick decisions on election night.