Bulgarian President Rumen Radev (right) gives a mandate to form a new government to Antoaneta Stefanova of Bulgaria's TSN party, in Sofia, Bulgaria on Wednesday. Stefanova returned the mandate. Radev is expected to mandate a third and final party of his choice to try to break the deadlock, after Bulgaria's premier Boyko Borisov had already admitted their efforts to form a government came to naught. Photo: AFP