The United States is working to clarify Turkey’s position on Sweden and Finland’s potential membership to NATO, the top US diplomat for Europe at the State Department said on Friday after Turkish President Tayyip Erdogan said Ankara is not supportive of the two countries’ bid to join the alliance. Erdogan said it was not possible for NATO-member Turkey to support plans by Sweden and Finland to join the pact given that the Nordic countries were “home to many terrorist organisations”. In a call with reporters, Karen Donfried, Assistant Secretary for Europe and Eurasian Affairs at the State Depar…