The opposition is hopeful it can oust the incumbent, whose party has ruled the country for 25 years. Brazil is the only country to use a fully digital voting system without paper backups. Mr. Bolsonaro has seized on that as a crucial flaw that leaves the system open to https://thebookmarkage.com/story17660147/orienta%C3%A7%C3%B5es-topo-da-vlogdolisboa