Write a short, clear, factual news headline based on this article: Poland’s Prime Minister Donald Tusk has said that Lithuania requested the exclusion of a Hungarian delegation from a NATO meeting as early as 2019, amid fears that it may have passed classified information to Moscow.

Denmark’s left bloc headed by Prime Minister Mette Frederiksen took an early lead in Tuesday’s general election but failed to secure a majority, exit polls showed, with Frederiksen’s Social Democrats posting their weakest showing in 125 years. FRANCE 24’s Haxie Meyers-Belkin speaks with Ulrik Pram Gad, Senior Researcher at the Danish Institute for International Studies.