File photo of U.S. President Barack Obama greeting his Venezuelan counterpart Hugo Chavez in Port of Spain

U.S. President Barack Obama (L) greets his Venezuelan counterpart Hugo Chavez before the opening ceremony of the 5th Summit of the Americas in Port of Spain in this April 17, 2009 file photo. Chavez has died after a two-year battle with cancer, ending the socialist leader’s 14-year rule of the South American country, Vice President Nicolas Maduro said in a televised speech on March 5, 2013. REUTERS/Miraflores Palace/Handout/Files (TRINIDAD AND TOBAGO – Tags: POLITICS OBITUARY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS