Putin and Trump are the world leaders least popular with the Portuguese, according to a poll

Tied for last place on this unfavourable 'podium' were Xi Jinping and Benjamin Netanyahu.

Tracking poll, second round, day 5: Seguro and Ventura lose ground; 'protest' vote gains strength

Almost half of respondents believe the country's unity will depend on who wins. But those who anticipate greater division are gaining strength.

1h. Seguro and Ventura closer in the polls

Pitagórica poll shows Seguro falling to 59% and Ventura rising to 28%. The gap narrows to 4.7 percentage points with 10 days until the second round, already including the debate in the figures.

Tracking poll, second round, day 2: Montenegro was right not to declare support (and if he were to, it should be for Seguro)

Tracking poll, second round, day 2: a third of votes for Seguro are against Ventura, a quarter of votes for Ventura are against Seguro

Seguro continues to lead comfortably in voting intentions. Daily polling shows the firmness of voting intentions but also the reasons for mobilisation behind each candidate. See all the data here.

Polling Radar: Which candidate is ahead?

Observador's Polling Radar is a tool that shows the estimated support for each presidential candidate based on all polls published by media outlets.

Second round — the exercise of 'uncertainty' and 'predictability'

An analysis of the second round of voting, exploring the tension between uncertainty and predictability in electoral outcomes, including the roles of polls, campaign strategies and voter behaviour.

Raimundo criticises the 'manoeuvre' of the polling operation and calls for Ventura's 'defeat'

The PCP secretary-general today criticised the 'manoeuvre of the polling operation' in the presidential elections, saying the ballot will be marked by 'conditionality', and reiterated his appeal to vote for Seguro to 'ensure Ventura's defeat'.

Presidential election: New poll puts Seguro ahead of Ventura with 70% of the vote

António José Seguro once again emerges as the favourite for the Presidency of the Republic, securing 70% of voting intentions in this second round. André Ventura manages to gather 30% of voting intentions. The data come from a poll by the Centre for Studies and Opinion Polling (Cesop) of the Catholic University for RTP, Público and Antena ...

Polls: Seguro is favourite in a run-off against Ventura

All the polls in recent days that tried to anticipate run-off scenarios and examined the Seguro vs. Ventura matchup are unanimous: Seguro is the favourite with a very comfortable lead.

Projection: Seguro wins, Ventura ahead of Cotrim in a statistical tie

Gouveia e Melo and Marques Mendes out of contention for the run-off

Tracking poll, FINAL DAY: Seguro always wins, Ventura always loses. All scenarios for the run-off

Analysis of all possible matchups for the presidential run-off.

Tracking poll, day 11: here are the results from the last day of the daily survey

The presidential campaign ends with three candidates in a technical tie for the two likely second-round places. António José Seguro leads with 25.1%, followed by André Ventura with 23% and João Cotrim de Figueiredo with 22.3%, figures calculated after allocating undecided voters.

Appeal not to demonise opinion polls to prevent citizens from opting out

António Salvador, of Intercampus, says that polls are “very relevant”, but it is necessary to understand the difference between the various types.

There is difficulty in interpreting what a poll is and an expectation that a poll is a prediction

Alexandre Picoto, of Pitagórica, said that polls “have entered the political fray” and that the institutes responsible for them should not have to respond to politicians' criticisms.

I don't at all believe that the polls are producing such disparate results

António Gomes, of GfK, describes the phrase 'there are polls for every taste' as 'unfortunate' and says there are 'generally minimal differences' between the various surveys.

We are facing the most closely fought election in recent decades, even more so than in 1986

Paulo Ferreira comments on the development of voting intentions in CNN Portugal's tracking poll, with candidates André Ventura, António José Seguro and João Cotrim de Figueiredo positioning themselves at the forefront for the second round.

The candidate best placed to secure a place in the second round is, without doubt, André Ventura

Gonçalo Ribeiro Telles comments on the evolution of voting intentions in CNN Portugal's tracking poll, saying that “it is practically clear” that André Ventura will go through to the second round.

Let's go to the polls. The fear of being left out of the second round

Conflicting polls reignite the race to Belém.

Polls prompt a 'public appeal'. Cotrim writes to Montenegro seeking support

In the wake of the Católica University poll for RTP, Antena 1 and Público, which indicates a presidential second round featuring André Ventura, João Cotrim Figueiredo or António José Seguro, the former IL leader sends a missive to Montenegro urging 'a vote for the PSD' and even quoting Sá Carneiro.

Cotrim asks Montenegro for support; Mendes and the admiral try to counter the polls

After a poll putting them outside the first round, Gouveia e Melo and Marques Mendes are trying on the campaign trail to show they can still make it into the first round. But more polls are yet to be published and there are two days left until the campaign ends.

Tracking poll, day 9: a trend is beginning to form for the presidential election

Tracking poll, day 6: Seguro returns to first place, Ventura is overtaken and drops to third