Former Iowa Senator Tom Harkin has been pushing for filibuster reform for more than 20 years. During his 30 years of public service, he experienced the Senate from the perspective of both majority and minority control. Harkin first introduced filibuster reform in 1995, when his party was in the minority — defying the conventional support of the filibuster by minority leadership. This article reviews his proposed reform and then digs a little deeper into the reasons for his proposal. Harkin’s proposal  This proposal would amend the Standing Rules of the Senate to permit a decreasing majority of senators to invoke cloture (end filibuster and move legislation forward toward a vote)…