After the general election of 2011, the populist Pheu Thai Party won a majority and Yingluck Shinawatra, Thaksin's younger sister, became prime minister. The People's Democratic Reform Committee organised another anti-Shinawatra protest after the ruling party proposed an amnesty bill which would benefit Thaksin. Yingluck dissolved parliament and a general election was scheduled, but was invalidated by the Constitution Court. The crisis ended with another coup d'état in 2014, the second coup in a decade. Since then, the country has been led by the National Council for Peace and Order, a military junta led by General Prayut Chan-o-cha. Civil and political rights were restricted, and the country saw a surge in lèse-majesté cases. Political opponents and dissenters were sent to "attitude adjustment" camps. Bhumibol, the longest-reigning Thai king, died in 2016, and his son Vajiralongkorn ascended to the throne. The referendum and adoption of Thailand's current constitution happened under the junta's rule. In 2019, the junta agreed to schedule a general election in March. Prayut continued his premiership with the support of Palang Pracharath Party-coalition in the House and junta-appointed Senate, amid allegations of election fraud. The pro-democracy 2020 Thai protests were triggered by the impact of the COVID-19 pandemic and enforcement of the lockdown Emergency Decree.