The Netherlands' Electoral Council (Kiesraad) has approved a request by the merged left-wing alliance GroenLinks-PvdA to contest future parliamentary elections under the new name Progressief Nederland, abbreviated as Pro. A formal merger vote among party members is expected in June, after which the registration must be resubmitted, though the Council considers this a formality. The name change faces complications at the local level, however, as dozens of existing municipal parties already include "pro" in their names and are preparing legal challenges before the Council of State, warning that voters could face confusion at the ballot box.