Alberto Fernández is the new president of Argentina.
The centre-left opposition candidate came out on top in an election that was marred by severe economic concerns.
He beat conservative incumbent Mauricio Macri, securing more than 45 per cent of the vote.
Marci officially conceded defeat and has congratulated Fernández.
The two met at the presidential palace to discuss an orderly transition.

Fire in rebel-held east Congo kills 24 schoolchildren
Trump touts $5,000 payout if Republicans win as Vance waits in wings
Search expands after Philippine ferry fire kills five and leaves dozens missing
Trump says Iran war to end after US midterm elections
At least 20 killed in cargo vessel fire at China shipyard, state media reports
US military says it struck vessel in Caribbean, killing 3
At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
