Discretionary rule of law in Mexico could undermine AMLO's anti-corruption drive

Mexico has a long history of discretionary application of the law, as demonstrated recently by the government's failure to prosecute corrupt state governors while they remained in office. Even from their position of political strength, Andrés Manuel López Obrador and his Morena party may find it hard to revert this trend and make good on their promise to root out corruption, writes Rodrigo Aguilera.