Venezuela's Guaido urges supporters to protest on Monday

Accompanied by his wife Fabiana Rosales, Venezuela's self-proclaimed interim president Juan Guaido waves to supporters outside the Foreign Ministry in Buenos Aires, Argentina, Friday, March 1, 2019. Guaido is in tour of several South American capitals as part of a campaign to build international pressure on his rival Nicolas Maduro to quit. (AP Photo/Natacha Pisarenko)