On November 25, the South Carolina Democratic Party filed a federal lawsuit against the law that requires voter registration applicants to disclose their entire social security number. South Carolina Democratic Party v Andino, 3:19cv-3308. The case is assigned to U.S. District Court Judge J. Michelle Childs, an Obama appointee.
The 1975 federal privacy act bars states from requiring the full social security number, but the law doesn’t apply if a state was doing that before that act took effect. The only other states with such a requirement for all voter registration applications are Tennessee and Virginia. The lawsuit depends on the First and Fourteenth Amendments. Thanks to Rick Hasen for this news.