Moving Forward or Backsliding: A Causal Inference Analysis of the Effects of the Shelby Decision in North Carolina

Abstract

The Voting Rights Act created a method of oversight called “preclearance,” which was designed to prevent changes in state and local voting laws that may negatively affect minority groups. Following the ruling in Shelby County v. Holder, however, preclearance is no longer enforced. This study assesses the impact of recently implemented local voting restrictions on turnout across various demographic and political subgroups in North Carolina. Unlike other states, preclearance in North Carolina was implemented at the county level. Two approaches to the regression discontinuity-design are used to estimate de facto minority disenfranchisement. This study finds that the removal of Section 5 preclearance negatively affected Democratic primary turnout, but did not affect Democratic vote share. Secondary effects resulting in the removal of Section 5 preclearance may be responsible for disproportionately lower levels of overall turnout in formerly covered counties in 2016. Ultimately, the data suggest minimal effects on minority turnout rates.

Keywords

preclearance Voting Rights Act regression discontinuity-design turnout

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