Lula rallies tens of thousands on Copacabana on eve of Brazil runoff
Leftist president seeks historic comeback against far-right rival Flávio Bolsonaro in Sunday's vote
Tens of thousands of supporters of Brazil's leftwing president, Luiz Inácio Lula da Silva, packed Rio de Janeiro's Copacabana beach on Saturday for a giant rally on the final day of campaigning before Sunday's presidential runoff election, as polls show the race tied with his far-right challenger, Flávio Bolsonaro.