Bolivia’s charismatic, long-serving ex-President Evo Morales told The Associated Press on Saturday that he didn’t know what to do about threats by the right-wing presidential candidates to arrest him if they came to power.

Former Bolivian president Evo Morales has launched a campaign for a contender called “Nulo,” representing a null-and-void vote.

A seismic political shift has taken place in Bolivia. The country’s leftist Movimiento al Socialismo (Mas) party, which has dominated Bolivian politics for nearly 20 years, was voted out of power in a general election on August 17.