Polish Prime Minister Donald Tusk acknowledged the setback dealt by the nationalist opposition party’s win in local elections held at the weekend, which were seen as the first test of his centre-left government since taking office late last year. Tusk, in a post on social media platform X, said he was heartened by victories scored by his Civic Coalition in individual races, like the contest for mayor in the cities of Warsaw and Gdansk, as well as some regional assemblies. He attributed the losses to the poor mobilization of young voters and the strong turnout of the opposition party Law and Ju…