Brazil’s presidential campaign launches amid fears of violence and upheaval

Far-right president Jair Bolsonaro is trailing in the polls and has hinted he will not cede power if defeated

Campaigning in Brazil's most important election for years formally gets under way this week amid fears of political violence on the campaign trail and possible turmoil before and after the October ballots.

Far-right president Jair Bolsonaro is trailing in the polls and has hinted he will not give up power if defeated by the leftist frontrunner and former president Luiz Inacio Lula da Silva.