How we measure

Technical sheet of the presidential ranking.

Every edition of the presidential ranking publishes its technical sheet. This is the latest available.

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Countries measured
18
Cases per country
1,959 – 3,911
Confidence level
95 %
Margin of error per country
± 1.6 – 2.2 %
Population
People aged 18 and over
Fieldwork
October 5–8, 2026

The countries

  • Argentina
  • Bolivia
  • Brazil
  • Chile
  • Colombia
  • Costa Rica
  • Dominican Republic
  • Ecuador
  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua
  • Panama
  • Paraguay
  • Peru
  • Uruguay
  • Venezuela

Source: technical sheet of the October 2026 edition, as reported by Político MX.

Latin America

Latin American Presidents

Approval of the region's heads of state, measured every month.

Editions
31
Since
Mar 2024

Latin America

Latin American Capital-City Mayors

Performance of the mayors of the region's capital cities.

Editions
14
Since
Jun 2025

Argentina

Argentine Governors and Mayors

Inter-provincial ranking of governors and the country's main mayors.

Editions
11
Since
Nov 2025

Argentina

Greater Buenos Aires Mayors

The mayors of the Buenos Aires metropolitan area.

Editions
11
Since
Nov 2025

Argentina

Argentine National Senators

Approval of the members of the Argentine Senate.

Editions
10
Since
Nov 2025

Argentina

Córdoba Province Leaders

Main mayors and department-level ranking of Córdoba's leaders.

Editions
9
Since
Nov 2025

Argentina

Buenos Aires Province Mayors (interior)

Regional ranking of mayors across the interior of Buenos Aires Province.

Editions
4
Since
Apr 2025
Latest edition · May 21, 2026May 2026Open report

All editions

2026
  1. Mar
  2. Apr
  3. May
2025
  1. Apr

Also

Election and opinion polls in Argentina, Brazil, Chile, Colombia, Ecuador, Peru and Uruguay.

See polls