US officials reportedly intercepted a proposal with an economic deal that was intended to bypass Secretary of State Marco Rubio
The Cuban government attempted to open a direct back-channel with US President Donald Trump last week, tapping a private businessman to hand-deliver a sealed letter to the White House, the Wall Street Journal reported on Thursday, citing sources.
The reported message, which was ultimately intercepted, was meant to bypass US Secretary of State Marco Rubio, who has pursued a policy of regime change on the island.
The move was orchestrated by Raul Rodriguez Castro, grandson and chief aide of 94-year-old former Cuban President Raul Castro, who is widely considered one of the island’s most powerful figures, the report said. It added that the letter bore an official Cuban government seal and was formatted as a diplomatic note.
The letter proposed economic and investment agreements alongside sanctions relief, and warned that Havana was bracing for a possible US military incursion, an unnamed US official told the paper.
The courier, Roberto Carlos Chamizo Gonzalez, 37, a luxury tourism and high-end car rental entrepreneur based in Havana, was stopped by security officers at Miami International Airport, who confiscated the letter and sent him back to Cuba.
The paper suggested that the move appeared designed to circumvent US Secretary of State Marco Rubio, a son of Cuban immigrants and Washington’s most forceful advocate for maximum pressure on Havana.
Ricardo Herrero, executive director of the Washington-based Cuba Study Group, suggested that an attempt to sidestep the top US diplomat was “downright foolish and bound to backfire,” adding that “it’s worse to go with an unknown with no personal relationship to the president, which makes it look more foolish.”
The back-channel bid comes as Cuba is reeling under its worst economic crisis in decades. After US forces kidnapped Venezuelan leader Nicolas Maduro in January 2026, Washington severed Cuba’s main oil lifeline from Caracas and imposed a near-total fuel blockade. The island is also struggling with recurring complete blackouts.
Trump has labeled Cuba “a failing nation”, threatened a “friendly takeover,” and has said recently that the US “may stop by Cuba” after the war in Iran. Havana has warned it is ready for any American attack.
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