Critics and observers say the plan for all judges to be elected, championed by ruling party Morena, could threaten judicial independence and undermine the system of checks and balances.

The sweeping constitutional reform under consideration would see Mexicans elect judges at all levels of government by popular vote.

Mexico's Senate has approved a controversial judicial reform under which judges will be elected by popular vote. Its supporters say the changes will make judges more accountable to the Mexican people but critics argue it undermines the country's system of checks and balances and will strengthen the power of the governing Morena party.