Portugal Votes in Fragmented Presidential Election

On 18 January, Portuguese citizens will vote to elect their new President for a five-year term. The winning candidate needs to obtain a majority of 50 per cent of votes plus one. If that fails to occur, then the two leading candidates will compete in a run-off vote on 8 February. The incumbent President Marcelo Rebelo de Sousa, in office since 2016, is constitutionally barred from seeking a third consecutive term.

Portugal is a semi-presidential republic, and the president, while mostly holding ceremonial responsibilities, has some tangible political power (unlike, for example, the heads of state of Italy and Germany). For example, the president has the authority to veto laws and appoints not only the prime minister, but also other members of government.

Eleven official candidates are contesting for the presidency. A first-round victory seems highly unlikely, and current polls indicate that only five of the candidates have a realistic possibility of progressing to the second round. André Ventura, the founder of the far-right nationalist party Chega! (CH) leads the polls with approximately 19.5 per cent support. Marques Mendes, the candidate of the governing centre-right Social Democrat Party (PSD), polls at 19 per cent. António José Seguro, of the Socialist Party (PS), has around 17.5 per cent support, as does Henrique Gouveia e Melo, an “outsider candidate” and former Chief of the Naval Staff who is running as an independent and has significant centre-right support. Finally, João Cotrim de Figueiredo, president of the Liberal Initiative (IL), polls at around 16.5 per cent.

ASSESSMENT

The elections are likely to be a crucial test for Chega that could accelerate the party’s political momentum. In May’s parliamentary elections, Chega won 22.8 per cent of the vote, improving on its 2024 result and becoming the main opposition force in parliament. On the other hand, Chega was generally seen as having underperformed at the October 2025 local elections, only winning in three municipalities.

Securing the presidency would almost certainly grant Chega significant leverage over the governing PSD-led coalition. A Chega president could threaten to weaponise presidential veto powers to extract significant legislative concessions and shift the parliament to the right, encouraging PSD to work more often with Chega.

Holding the presidential office for five years is also an important political asset at a time of extreme parliamentary instability in Portugal. The 2025 vote was the third in three years, and the current governing coalition only retains a parliamentary minority. Finally, Chega’s position is further reinforced by Portugal’s lack of a developed cordon sanitaire system; the informal agreement that, in the parliaments of other European countries, such as France and Germany, centrist parties unite to keep the far-right out of power.

Current polls indicate that Ventura is likely to reach the second round. In other European head-to-head electoral contests involving a far-right candidate (such as, for instance, the second round of the 2022 French presidential elections), supporters of rival parties have typically coalesced around the leading alternative candidate to deny a far-right victory. However, several of the presidential candidates are from the right of the political spectrum, and if the choice is between Chega and the Socialist Party, Ventura’s chances will likely markedly increase, with right-leaning voters, not affected by a cordon sanitaire, potentially opting for Chega to block the left. On the other hand, a centre-right candidate may have a greater chance of winning centre-left voters by positioning themselves as a “lesser of two evils” against the far-right.

While presidential elections in Portugal seldom result in protests, a (likely) second round involving Ventura, which raises the possibility of a Chega head of state, would likely become an important cause of public opposition. Chega’s growth in the polls has meant that party rallies have increasingly been met by large counterprotests. Occasionally, as during the April 2025 Revolution Day celebrations in Lisbon, these demonstrations have escalated into clashes between opposing groups.

Furthermore, the likelihood of civil unrest after the first round of the elections is further increased by recent political developments in Portugal. In December, Portugal experienced its largest general strike in a decade, which forced the government to amend a labour reform package that opponents said reduced workers’ rights. Before the protests, the reform, proposed by the PSD coalition, was widely expected to be approved by parliament with Chega’s support. Chega representatives later backtracked and called on the government to amend the legislation as protests gained significant traction. Emboldened by their recent success, labour unions may stage further demonstrations, particularly if the runoff appears to be “tilted to the right”, for example, in a Ventura-Mendes scenario.

While large-scale protests cannot be ruled out, especially in Lisbon, protests after the first round are likely to be mostly peaceful and smaller-scale. On the other hand, direct action by groups opposing Chega is likely. This may include vandalism, particularly targeting party premises and police and government offices, and possibly small-scale political violence, such as clashes involving opposing political activists.