Ballotage in Argentina
In Argentina, presidential elections are conducted under the ballotage system. This system added by the 1994 amendment to the Constitution of Argentina, as part of the negotiations between former president Raúl Alfonsín and president Carlos Menem.
Most countries with a two-round system require a candidate to win at least 50 percent of the vote to win the presidency in a single round without a follow-up election (ballotage). In Argentina a candidate wins with at least 45 percent of the vote, or with at least 40 percent of the vote and at least 10 percentage points more than the runner-up. Lower-level Argentine districts, such as the city of Buenos Aires, use the conventional two-round voting system.
Since the amended constitution took effect, as of 2019[update] only two elections had a result that required a second ballot:
The 2015 elections also required a second ballot. 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. In the first runoff ever held for an Argentine presidential election, Macri narrowly defeated Scioli, winning 51.34% of the votes to Scioli's 48.66%.
- Juan Pablo Bustos Thames (October 25, 2015). "Breve historia del ballotage en la Argentina" [Brief history of ballotage in Argentina] (in Spanish). Infobae. Retrieved October 26, 2015.
- "Resultado del Escrutinio Definitivo de la Segunda Vuelta Electoral del 22 de noviembre" (PDF) (in Spanish). Cámara Nacional Electoral. Retrieved 8 December 2015.
- Simon Romero and Jonathan Gilbert (November 22, 2015). "In Rebuke to Kirchner, Argentines Elect Opposition Leader Mauricio Macri as President". The New York Times. Retrieved November 24, 2015.
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