A recent ruling by Spain’s highest court has created a disparity in voting rights for nationals who gained citizenship through the “grandchild law.” The decision hinges on residency, specifically whether individuals are registered with the Registry of Spaniards Resident Abroad (CERA). The case highlights the situation of families like the Pérez sisters, both Spanish citizens through a Cuban-born grandfather. Mabel Pérez is unable to vote due to her registration in the CERA, while her sister, Lourdes, who resides in Sevilla, retains her right to vote. This split in rights has sparked debate regarding equal access to the franchise for nationals living outside of Spain. The ruling effectively differentiates between Spanish nationals based solely on their place of residence, raising questions of fairness and equal treatment under the law. Critics argue the decision divides families and disregards the fundamental rights of citizens.