Presidential candidate Alberto Fernández, fresh from his landslide victory in the PASO primaries, declared Sunday night that "Argentina had realised that change" will arrive in the form of his Frente de Todos coalition.
"We are going to fix what the others have broken," he told cheering supporters at the opposition Peronist party's bunker in Chacarita, Buenos Aires City.
The opposition candidate, whose ticket is seconded by vice-presidential candidate and former head of state Cristina Fernández de Kirchner, scored a huge victory on Sunday night, taking 47.34 percent of the vote with 88 percent of polling stations recorded.
"Argentina has realised that the change is us, not them," Fernández said, referencing Preisdent Mauricio Macri's Juntos por el Cambio coalition, which was formerly known as Cambiemos ("Let's Change").
"For those who didn't vote for me, I promise to work hard so they understand me," said Fernandez to thousands of cheering supporters in Buenos Aires.
Macri trailed with some 32 percent of the vote, leaving him with a mountain to climb when voting proper rolls around in October.
"We are not going to ask anyone who they voted for," he added, mocking the government's request last week that asked supporters to publicly share their voting choice on social networks.
"Once again we are going to fix what the others have broken," he said euphorically.
"To those who recommended that we go to sleep, please ask them not to sleep anymore, because they have been sleeping a long time and have generated a huge problem for us," added Fernández, ribbing the president, who had told his supporters at the end of his own speech on Sunday night to get some rest.