At a celebration in the Plaza de Armas in La Paz, Bolivia's President Luis Arce urges supporters of the ruling party to prepare for the 2025 elections, which he says will be "a tough year". "It is a year in which our social organizations, our political instrument, must be more firm than ever on the original principles of our political instrument," he says at the event celebrating the Movement Towards Socialism (MAS) party's first presidential victory in 2005. IMAGES AND SOUNDBITES