This is the first poll conducted entirely after the televised debate between Seguro and Ventura. The figures bring bitter news for both presidential candidates.

Technical details

Over three days (28, 29 and 30 January 2026) Pitagórica collected a minimum of 202 to 203 interviews per day (depending on quota adjustments) for TVI, CNN Portugal, TSF and JN to ensure a daily sub-sample representative of the Portuguese electoral universe (non-probability). The sampling criteria were gender, three age groups and 20 geographic strata (districts plus Madeira and the Azores).

The aggregation of the last three days of fieldwork resulted in a sample of 608 interviews which, for a confidence level of 95.5%, corresponds to a maximum margin of error of ±4.06%.

Respondents were selected through random generation of mobile phone numbers, maintaining the proportion of the three main mobile operators. When necessary, landline numbers were randomly selected to support the sampling plan. Interviews were conducted by telephone using CATI (Computer Assisted Telephone Interviewing).

The study aims to assess Portuguese voters' opinions on issues related to the Presidential elections, namely the main protagonists, campaign moments and the voting intentions for the various candidates. There were 1,261 contact attempts to achieve 608 completed interviews, giving a response rate of 47.87%.

The allocation of undecided voters is done proportionally.

The technical direction of the study is the responsibility of Rita Marques da Silva. The full technical sheet and all results have been filed with the ERC — the Regulatory Authority for the Media — which will make them available online for consultation.