Lisbon: Portuguese voters were electing a new president on Sunday in a ballot being closely watched in Brussels as the country recovers from a 78-billion-euro ($85-billion) bailout.
Although the post is largely ceremonial, the president has make-or-break power over the nation`s fragile ruling alliance and the power to dissolve parliament in the event of a crisis.
The overwhelming favourite is a 67-year-old law professor and TV pundit, Marcelo Rebelo de Sousa, known as "professor Marcelo" to his fans.
He comes into the race with a popularity built over decades in the public eye, which is widely expected to help him break the 50-percent mark for an outright win in Sunday`s voting.
If none of the 10 candidates breaches this threshold, a run-off will be held on February 14.
Since inconclusive elections in October, Portugal`s minority Socialist government has been relying on a delicate coalition with the extreme-left to run the country of 10.4 million people.
Socialist Prime Minister Antonio Costa did not state a preference as he urged people to elect "a representative for all Portuguese."
De Sousa`s image divides opinions however.
"Professor Marcelo is the best candidate. He is an experienced politician who inspires confidence," said Lisbon voter Cesario Correia, a 69-year-old pensioner.
Accountant Jose Nascimento, 57, was not convinced. "Marcelo`s a showman, a showbiz personality who promises everything to everyone."
Rebelo de Sousa has been involved in Portuguese politics and media since his youth, co-founding a weekly newspaper in his 20s and helping to establish the centre-right Social Democratic Party.
Starting in the early 2000s he made his debut as a political analyst on TV, delivering clever commentary to a viewership that quickly grew.
"People love Marcelo because he is entertaining," said Rebelo de Sousa biographer Vitor Matos.The centre-right bloc of former conservative prime minister Pedro Passos Coelho won the most seats in the October ballot, but lost the absolute majority it had enjoyed since 2011.
On taking over, Costa promised to implement a moderate programme that upholds European Union budget commitments.
But the government is forced to count on the support in parliament of communists and greens critical of EU budgetary rules and Portugal`s membership of NATO.
Rebelo de Sousa has the backing of right wing parties but claims total independence, insisting he will not be partisan but seek to rule "above the fray".
He would succeed Anibal Cavaco Silva, a conservative who has served two consecutive five-year terms and who had been reluctant to hand power to a leftist coalition he viewed as "incoherent".
Rebelo de Sousa, who polls predicted would garner between 52 and 55 percent of the vote, says he will do "everything I can" to ensure the current government`s stability.
"He is a consensus candidate and a moderate who takes votes both on the left and on the right. But the voters will have to mobilise for him to be elected in the first round," political analyst Jose Antonio Passos Palmeira told AFP.
Independent leftist Antonio Sampaio da Novoa, also a university professor, is his nearest rival with polls putting his support at between 17 and 22 percent. Former health minister Maria de Belem Roseira is on course for an 8 to 13 percent vote share.
Around 9.7 million people are registered to vote, but turnout is traditionally poor. In 2011, just one voter in two bothered to cast their ballot.
Polling booths opened at 8 am (0800 GMT) and were to close at 1900 GMT, save for the mid-Atlantic Azores archipelago, where they were opening and closing one hour later.
By 4 pm turnout was 37.69 percent, compared with 35.16 percent at the same time in 2011.
Whatever the result, the support of one international celebrity is not in doubt. Sacked Chelsea coach Jose Mourinho has called Rebelo de Sousa a "charismatic winner" in a video of support on YouTube.