BRASILIA, Brazil — Brazil’s Luiz Inácio Lula da Silva was sworn in as president on Sunday, and in his first address expressed optimism about plans to rebuild while pledging that members of outgoing Jair Bolsonaro’s administration will be held to account. Lula is assuming office for the third time after thwarting far-right incumbent Bolsonaro’s reelection bid. Tens of thousands of supporters decked out in the red of Lula’s Workers’ Party cheered after his swearing in.