Summit of the Americas, Lima, Peru

U.S. Vice President Mike Pence, center, speaks with Venezuelan opposition leaders Carlos Vecchio, left, Julio Borges, David Smolansky and Antonio Ledezma during a meeting at the residence of the US ambassador, in Lima, Peru, Friday, April 13, 2018. (AP Photo/Karel Navarro)

U.S. Vice President Mike Pence, center, speaks with Venezuelan opposition leaders Carlos Vecchio, left, Julio Borges, David Smolansky and Antonio Ledezma during a meeting at the residence of the US ambassador, in Lima, Peru, Friday, April 13, 2018. (AP Photo/Karel Navarro)