Thaksin was overthrown in a military coup on 19 September 2006. His party was outlawed and he was barred from political activity. Thaksin has since lived in self-imposed exile except for a brief visit to Thailand in 2008. He was sentenced "in absentia" to two years in jail for abuse of power. From abroad he has continued to influence Thai politics, through the People's Power Party that ruled in 2008, and its successor organisation Pheu Thai Party, as well as the United Front for Democracy Against Dictatorship or "Red Shirt" movement. His younger sister Yingluck Shinawatra was the prime minister of Thailand from 2011 to 2014.