Chief Justice John Roberts, speaking at a moment when threats against judges are on the rise, warned on Saturday that elected officials’ heated words about judges can lead to threats or acts of violence by others. Without identifying anyone by name, Roberts clearly referenced Republican President Donald Trump and Senate Democratic leader Chuck Schumer of New York when he said he has felt compelled to issue public rebukes of figures in both parties in recent years. “It becomes wrapped up in the political dispute that a judge who’s doing his or her job is part of the problem,” Roberts said...