Turning Legislative Effectiveness into Legislative Success The Center for Effective Lawmaking (“CEL”) conducted an in-depth study to explore whether lawmakers in Congress are rewarded in primary elections for their effectiveness. Do effective members win at a greater rate during this time of the electoral cycle? Can they ward off challengers? The answer, for the first time, is clear. And it has obvious impacts on how lawmakers considering reelection should use their time in Congress. Looking at congressional primaries data from 1980-2016 allowed CEL researchers to remove partisan cues and focus…