The Washington Post announced Friday that it has ended its tradition of endorsing a candidate in the U.S. presidential election, sparking outrage among staff members and causing some readers to cancel their subscription. “The Washington Post will not be making an endorsement of a presidential candidate in this election. Nor in any future presidential election,” publisher and CEO William Lewis said. “We are returning to our roots of not endorsing presidential candidates.” This will be the first time since 1988 that the Washington Post has not endorsed a presidential candidate, even though the n…