On an election night, when do the major networks disclose exit polling and predictions on the winners?

Answer 1

Way too soon. Some of them "predict" winners based on incomplete poll results from the eastern states. This is an evident attempt by the liberal media to influence the elections by activating certain voters in the western states, which come in later with their votes. This was never more apparent than in the 2004 presidential election. The practice should be outlawed. No results should ever be reported until the last polls have closed in Alaska and Hawaii.