Brazil's Lula and Flávio Bolsonaro kick off their presidential campaigns

President Luiz Inácio Lula da Silva and Flávio Bolsonaro officially launched their presidential campaigns on Sunday in Brazil. The candidates held rallies in their respective political strongholds to mark the start of the race ahead of the upcoming October election.

Lula da Silva addressed a crowd of more than 10,000 supporters in São Bernardo do Campo. The events signal the beginning of a contest that is widely anticipated to be a tight race between the two primary candidates.