The rules of the Eurovision song contest are clear: no politics. That might not seem hard for a pop-music showcase, but when contestants represent their countries, politics tends to get involved. The victory in 2014 of Conchita Wurst, a drag queen from Austria, seemed to rebuke Russia’s homophobic government, which had invaded Ukraine. Two years later Ukraine won with a song by a Crimean Tatar about Stalin’s deportation of her ancestors.