European Council President Antonio Costa waves and leaves with Serbian President Aleksandar Vucic after a press conference at the Serbia Palace in Belgrade, Serbia, Tuesday, May 13, 2025. (AP Photo/Darko Vojinovic) BELGRADE – European Council President António Costa on Tuesday criticized Serbia populist president's trip to Russia's Victory Day ceremonies last week, but said that he received assurances that the troubled Balkan nation nonetheless will remain on the path toward European Union accession. Costa said in Belgrade — at the start of his tour of six Western Balkan membership hopefuls — that “a lot of people asked me not to...