Boston Globe: “The Massachusetts Teachers Association, the state’s largest union, is lobbying the state Senate’s Democratic leadership to strip a provision in a campaign finance reform bill that targets the influence of super PACs. The union and its allies are in a behind-the-scenes struggle with the bill’s Senate supporters and campaign finance reform advocates, as labor leaders try to remove language that would require political action committees to disclose the top five donors in their television ads, say two sources with knowledge of the negotiations.”