On her 12 p.m. ET hour show on Wednesday, MSNBC anchor Andrea Mitchell was worried that the clear Democratic affiliation and left-wing activism of the shooter who attacked members of Congress was going to be “swept up” in coverage of the violence and exploited by “partisans.” She acknowledged that alleged shooter James T. Hodgkinson “was a volunteer in [Bernie] Sanders’ campaign” and that “within his mental condition, there was, at least he felt, some sort of political motivation, as horrible as that is to even address.” Correspondent Garrett Haake – reporting from the scene of the attack in Alexandria, Virginia...