The most recent subjects of the president’s frustration include two top career FBI officials, Deputy Director Andrew McCabe and former general counsel James Baker. Without evidence, Mr. Trump hinted darkly on Twitter at some wrongdoing by Mr. Baker in noting his reassignment from the general counsel position. Mr. Trump reiterated his attacks from this summer on Mr. McCabe, accusing the deputy director of political bias because of donations by Virginia Gov. Terry McAuliffe (D) to a failed state senate campaign run by Mr. McCabe’s wife. Yet there is no law prohibiting the spouses of civil servants from running for political office. And Mr. McCabe did no work for the campaign, which had ended by the time he was assigned to the Hillary Clinton email investigation.