Whether it be at the airport in the Bulgarian capital, Sofia, or along the roads connecting cities nationwide, the face of Bulgaria's former president is everywhere right now. Billboards and banners for Rumen Radev and his newly founded Progressive Bulgaria party dominate the visual landscape across the country. While other parties traditionally feature a larger cast of members in their campaign material, Progressive Bulgaria's messaging revolves entirely around its leader. A former military pilot, an admirer of Hungary's outgoing Prime Minister Viktor Orban and an opponent of Bulgaria's adoption of the euro , Radev was elected president twice, in 2016 and 2021. Campaign posters for Rumen Radev's Progressive Bulgaria are everywhere across the country Image: NurPhoto/picture alliance While president, he frequently criticized the parties in successive coalition governments and enjoyed strong approval ratings.…