The Supreme Court is hearing arguments today in Moore v. Harper, a pivotal election case which legal experts warn could upend the electoral process around the country and threatens U.S. democracy. The case centers on the “independent state legislature” theory and seeks to hand state legislatures near-total authority in voting issues, overriding courts, governors and state constitutions. The case was brought by North Carolina Republican lawmakers after state courts struck down their illegally gerrymandered congressional maps.