On Friday, USA Today ended its tradition of not taking sides and published an anti-endorsement, contending that Trump "lacks the temperament, knowledge, steadiness and honesty that America needs from its presidents." Trump scorned the negative editorials Friday, tweeting that The people are really smart in cancelling subscriptions to the Dallas & Arizona papers & now USA Today will lose readers! If Clinton's overwhelming advantage among editorial boards mirrors the revulsion Trump has inspired from officials in both parties, the endorsements may also illustrate the decline in newspapers' power to shape opinions and the strength of Trump's anti-establishment appeal. During the primaries, the venerable conservative paper the New Hampshire Union Leader endorsed Chris Christie, only to have the New Jersey governor lose the state decisively, drop out and back Trump. "Newspaper endorsements don't have nearly the impact they used to," says Mark MacKinnon, co-host of Showtime's political show "The Circus" and a longtime adviser who has worked with former President George W.