(Best of the tube: Catch us on “Varney & Co.” discussing “fake news” Tuesday around 9:45 a.m. ET on Fox Business.) “Top Republicans must reject the ridiculous notion that a national election can be ‘rigged,’ ” the New York Times demanded in an Oct. 18 editorial. That was then, this is now: “[President-elect] Trump should be leading the call for a thorough investigation, since it would be the only way to remove this darkening cloud from his presidency. Failing to resolve the questions about Russia would feed suspicion among millions of Americans that a dominant theme of his candidacy turned out to be true: The election...