On May 30, Vladimir Putin will meet with Prime Minister of Bulgaria Boyko Borisov 2018-05-28 15:00:00 On May 30, Vladimir Putin will have a meeting with Prime Minister of Bulgaria Boyko Borisov, who will be in Russia on a working visit. During the talks, Vladimir Putin and Boyko Borisov are to discuss further efforts to step up bilateral cooperation and review current international issues.