In Argentina, presidential elections are conducted under the ballotage system.
This system was added by the 1994 amendment to the Constitution of Argentina, as part of the negotiations between former president Raúl Alfonsín and president Carlos Menem.
Lower-level Argentine districts, such as the city of Buenos Aires, use the conventional two-round voting system.
[1] Since the amended constitution took effect, as of 2023[update] only two elections required a ballotage.
[1] FPV candidate and Buenos Aires Province Governor Daniel Scioli led the field in the first round, but finished with only 37 percent of the vote, three percentage points ahead of opposition leader and Buenos Aires Mayor Mauricio Macri's 34 percent.