A CORE SKILL in MAGA diplomacy is the making of offers that cannot be refused. Karol Nawrocki “needs to be the next president of Poland. Do you understand me?” Kristi Noem, America’s Homeland Security Secretary, urged voters in Poland on May 27th. Ms Noem was addressing a rally in Jasionka, a logistics hub near the frontier with Ukraine, days before a presidential election pitting Mr Nawrocki, a nationalist historian, against the progressive, pro-European mayor of Warsaw.