At the CELAC summit, President Lopez Obrador asked Latin American countries to join the Mexican complaint against Ecuador before the International Court.
Full StorySheinbaum represents a coalition formed by the left-wing and environmental parties for the June, 2 Mexican elections.
Full StoryMexico maintains that the unauthorized entry into its Embassy is not an isolated event but part of "a series of continued acts of intimidation and harassment."
The complaint seeks to establish a precedent so that any state that acts as Ecuador did is expelled from the United Nations.
The OAS resolution calls for respect of the Vienna Convention on Diplomatic Relations.
Diplomat Barcena urged CELAC nations to support the Mexican complaint in the International Court of Justice.
If the Vienna convention is not complied with, then there is no longer diplomatic law, the Mexican president stressed.
A government doesn't do that unless it feels it has support from foreign powers, Mexican President Lopez Obrador said.
The Ecuadorian diplomat justified the security forces' raid by arguing that Mexico was the first to violate international norms.
The condemnation of the attack on Mexican sovereignty was present in the first presidential debate.
The candidates will mainly address issues related to the fight against corruption, health and education, as well as transparency, non-discrimination of vulnerable groups and the fight against gender-based violence.