WASHINGTON — In fall 2016, a Hillary Clinton staffer stationed in the Upper Midwest got a call from the campaign’s headquarters in Brooklyn telling him to delete a joke he had tweeted about then-Green Party nominee Jill Stein. The campaign’s policy, in keeping with the standard practice, was to not discuss third-party candidates, whom they viewed as minor nuisances to be ignored — not as adversaries worth combating openly, even in jest. This year, though, Democrats have adopted a radically... Read this story