Srettha Thavisin from the populist Pheu Thai party secured enough votes in parliament to become the country's 30th prime minister Tuesday, hours after former Prime Minister Thaksin Shinawatra returned from years of self-imposed exile and began an eight-year prison sentence.

While the vote was not complete, Srettha had enough votes to win. The voting was suspended with about around 20 votes left to cast after someone collapsed on the floor of parliament.

A real estate tycoon, his apparent victory ends months of suspense, legal wrangling and horse trading that allowed the second-place election winner to form a government after the surprise winner, the Move Forward Party, was repeatedly rejected by conservative senators appointed by a previous military government.

Srettha will lead a coalition of 11 parties that includes two pro-military parties affiliated with outgoing Prime Minister Prayuth Chan-ocha. Move Forward was excluded from the coalition. Critics called the new government a betrayal of the election results, but Pheu Thai leaders defended it as a necessity for ending the political deadlock and creating reconciliation.

At Pheu Thai party headquarters, supporters in red danced in celebration.

Pheu Thai excluded Move Forward, saying its stance on changing the royal defamation law had made it impossible to rally enough support from other parties and the Senate. Both houses of Parliament vote together for the prime minister under the military-implemented constitution, in an arrangement designed to protect conservative military-backed rule.

Pheu Thai said it would control eight Cabinet posts and nine deputy Cabinet posts. The military-backed parties — Palang Pracharath and United Thai Nation — are to receive two Cabinet posts and two deputy posts each. Pheu Thai has not identified the ministries that each party will control.

It said the coalition agreed to support Pheu Thai's platform of boosting the economy, increasing the minimum wage and ending mandatory conscription.?

They will also support the continued legalisation of medical marijuana and work to amend the constitution to make the country “become more democratic,” while not touching the royal defamation law, Pheu Thai said.

The parliamentary vote came hours after divisive ex-Prime Minister Thaksin Shinawatra returned to Thailand after years of self-imposed exile to face criminal charges after being ousted in a 2006 military coup.

His return was an emotional moment for supporters of the 74-year-old billionaire, who won the loyalty of millions with populist policies that directed attention, and funding, to the country's largely rural, often impoverished, north.

Hundreds of people gathered outside of the airport hours ahead of Thaksin's 9 a.m. arrival, donning red clothes and holding sign with welcoming messages. They sang and chanted in anticipation, then raised a raucous cheer when he appeared at the terminal door.

“I feel fulfilled that I travelled here today to pick him up. If possible I want to hug him. Everyone has tears, tears coming out of their eyes,” said Makawan Payakkae, a 43-year-old from Maha Sarakham province, in Thailand's northeast.

Thaksin and parties backed by him struggled with the military for years. Thaksin left Thailand 15 years ago, following a 2006 coup that cut short his second term as prime minister and sparked years of upheaval.?

A Pheu Thai government led by Thaksin's sister Yingluck Shinawatra was ousted in 2014 by then-army chief Prayuth Chan-ocha, who is now the outgoing prime minister after voters largely rejected military-linked parties in May.

Before his return earlier Tuesday, Thaksin has said his decision to return has nothing to do with the Pheu Thai party's bid for power, but many observers suspect that the divisive former leader is betting that a friendly government will be able to cut his sentence short.

“Thaksin's plans to return to Thailand were postponed after the election results were announced — this implies a strong connection between the election, formation of coalitions, and selection of the prime minister on one hand, and Thaksin's personal agenda on the other,” said Napon Jatusripitak, a political science researcher and visiting fellow at Singapore's ISEAS-Yusof Ishak Institute.

Less than a week before the May elections, Thaksin announced plans to return before his birthday in July, but they were repeatedly delayed.

Napon said Thaksin's decision to return now suggests that “he has received assurances that he will not have to serve a prison sentence in full.”

Deputy Prime Minister Wissanu Krea-ngam of the outgoing military-linked government has said that Thaksin can request a royal pardon like any other inmate, and could receive special consideration because of his age.

After walking out of the airport, Thaksin prostrated himself before a portrait of Thailand's king and queen and left a flower wreath. He spent a moment greeting supporters and the media waiting in front of the terminal, but did not speak.

Thaksin's convoy went from the airport to the Supreme Court, where a special body that handles criminal cases against former officeholders confirmed an eight-year sentence given to him in absentia for corruption, which he has he dismissed as politically motivated. He then went directly to Bangkok's main prison.

Correctional officers at Bangkok Remand Prison said in a news conference that following a medical check, Thaksin had been categorised as “vulnerable” due to his age and chronic conditions affecting his heart and lungs, including high blood pressure, and he will be held in isolation and monitored at all hours due to safety and health concerns.

Thaksin's daughter Paetongtarn Shinawatra, a key figure in Pheu Thai, posted family photos with Thaksin in the middle on Facebook with a message thanking people who went to the airport to welcome her father, saying “me and my family are very grateful.”?