Legislative elections were held in Argentina on 27 October 2013. Open primary elections were previously held on 11 August 2013 to determine eligible party lists for the general election. As in 2011 –
Sergio Massa (5th from right) caps a campaign rally with his fellow Renewal Front candidates. Their party list won in Buenos Aires Province, the nation's largest. The balance of power in Congress was largely unchanged, however, and the Front for Victory maintained their working majority in both houses.