Oil Blockade Showdown: Can Mexico & Brazil Stop a Regional Crisis? Mexico and Brazil are stepping up as mediators, urging the United Nations to intervene after President Trump ordered a naval blockade of oil tankers entering and leaving Venezuela. Mexican President Claudia Sheinbaum has offered Mexico as a venue for negotiations, emphasizing that “the entire […] The post Oil Blockade Showdown: Can Mexico & Brazil Stop a Regional Crisis? first appeared on The Zambian Observer .