A supporter rolls a poster with the picture of Bulgarian right-wing opposition GERB party leader Boiko Borisov in the Bulgarian capital Sofia, Saturday, July, 4, 2009. Opinion polls in the run-up to Sunday's vote have suggested Prime Minister Sergei Stanishev will pay the price for the failure of his corruption-tainted government to handle an economy hit hard by the global downturn. One poll published Saturday suggested his main opponent, the capital's Mayor Boiko Borisov would easily win.