During the 2019 European elections, the UDB, through the federation Régions et Peuples Solidaires (R&PS) associated with EELV (the Greens), participates in the important score achieved by the national EELV list in Brittany, with 16.92% of the votes, while the average score of the list outside the zones where regionalists are associated is only 13.1% in the hexagon. François Alfonsi from Corsica (R&PS) was elected in 9th position on the list, Lydie Massard from the UDB, 14th on the list, was not elected with only 30,000 votes.