On 28 July 2006, former president Alan García became President of Peru after winning the 2006 elections. In May 2008, Peru became a member of the Union of South American Nations. In April 2009, former president Alberto Fujimori was convicted of human rights violations and sentenced to 25 years in prison for his role in killings and kidnappings by the Grupo Colina death squad during his government's battle against leftist guerrillas in the 1990s. On 5 June 2011, Ollanta Humala was elected president. During his presidency, Prime Minister Ana Jara and her cabinet were successfully censured, which was the first time in 50 years that a cabinet had been forced to resign from the Peruvian legislature. In 2016, Pedro Pablo Kuczynski was elected, though his government was short lived as he resigned in 2018 amid various controversies surrounding his administration. Vice president Martín Vizcarra then assumed office in March 2018 with generally favorable approval ratings. Alan García was involved in the Operation Car Wash scandal and as police tried to arrest him, he committed suicide on 17 April 2019. Later that year, in July, police arrested Alejandro Toledo in California. Amid the crisis, on 30 September 2019, President Vizcarra dissolved the congress, and elections were held on 26 January 2020.