This is the Brief from Brussels, a roundup of the top stories from the EU’s de facto political capital. In today’s edition, European Council President Donald Tusk was in Vienna to talk about Austria’s upcoming EU presidency. Migration and security will be top of the agenda, Austrian Chancellor Sebastian Kurz made clear. Meanwhile in Brussels, Commission President Jean-Claude Juncker is set to announce a verdict on just how his successor will be chosen when he steps down next year. Will the Spitzenkandidat – or lead candidate – process prevail?