Myanmar's parliament on Wednesday elected a staunch ally of Aung San Suu Kyi as the country's new president, allowing her to maintain a tight grip on top-level decision-making.
Win Myint, 66, had been tipped for the role after former president Htin Kyaw suddenly stepped down last week, citing the need for rest.
Suu Kyi is barred by the military-drafted constitution from the presidency because she was married to a foreigner and has two sons who are British citizens. She has instead served as state counselor since her party's landslide 2015 election victory, declaring she would work "above" the president.
But her position has no official constitutional role.
That makes it crucial for her to have a compliant friend as president as she manages an often fraught power-sharing arrangement with the still powerful military, which ruled the country for almost half a century.
"I will do my best to carry out my duties for the people," Win Myint told reporters as he left parliament after the vote.
Win Myint, who resigned as lower house speaker last week, swept up nearly two-thirds of the votes in a parliament dominated by Suu Kyi's National League for Democracy (NLD) party.
He beat two opponents, including the military-backed acting president Myint Swe.
The former lawyer hails from Suu Kyi's inner circle -- the pair fought side-by-side during the 1988 democracy movement that was violently quashed by the junta and saw Win Myint, alongside many others, being taken political prisoner.
As Myanmar emerged from an outright military rule, Win Myint won his seat in 2012 by-elections, the same vote that elevated Suu Kyi to parliament after a combined 15 years of house arrest.
She is still widely regarded as a heroine in Myanmar even though her reputation lies shattered globally for failing to speak up on behalf of the country's Rohingya Muslim community.
An army crackdown has driven almost 700,000 of the persecuted minority out of the country since August.
Observers say his appointment is unlikely to change politics much although he could assume some duties from Suu Kyi, who is notoriously unwilling to delegate.
"We cannot expect a very high political impact on Myanmar democratization," said independent analyst Yan Myo Thein.
Political analyst Yan Kyaw said that while Win Myint's profile may rise, "he won't do anything against Daw Aung San Suu Kyi."
