The Republican senator Bill Cassidy (Louisiana), chairman of the Senate Committee on Health, Education, Labor, and Pensions, sent a formal letter to the International Association of Machinists and Aerospace Workers (IAM) this Thursday, demanding information regarding their alleged ties to the Cuban regime.
According to a report from the Senate Committee on Health, Education, Labor, and Pensions itself, the IAM is one of the largest industrial unions in North America, with approximately 600,000 members, and the investigation aims to determine whether the organization has used its members' dues to fund propaganda and lobbying activities in favor of Havana.
The immediate trigger was an event held at the Machinists Hall in Wilmington, California, in May 2026, where David Ramírez Álvarez —the second secretary of the Cuban Embassy in Washington— addressed union members as part of the campaign "U.S. Hands Off Cuba."
In that meeting, the Cuban diplomat described the current Congress as "one of the most active periods in nearly a decade for legislation related to Cuba" and characterized the U.S. embargo as "an act of war" and "collective punishment."
According to the Senate HELP Committee, the case exemplifies a union "colluding" with the Cuban regime and forcing workers to fund "anti-American propaganda" with their own dues.
"These examples raise serious concerns that officials from the IAM union may have used their positions within the union to advocate for political objectives promoted by the Cuban regime as part of a foreign influence plan," Cassidy stated.
The letter specifically asks whether personnel from IAM coordinated with Cuban officials, whether payments linked to the government of Havana were made, and whether leaders or members consulted with Cuban officials regarding policy towards the island.
"American workers should not be forced to fund advocacy activities that promote the foreign policy goals of a hostile foreign power, particularly one responsible for the deaths of at least three American citizens and one American resident in international waters," Cassidy wrote in the letter.
This research is part of a broader offensive by the U.S. government against the alleged Cuban influence network on American soil.
The Department of Justice and the Department of the Treasury are investigating 145 pro-Cuba nonprofit organizations with combined annual revenues of approximately 1 billion dollars, for allegedly coordinating political activities with Cuban officials without registering as foreign agents under the FARA Act.
The trigger for that broader investigation was the formal charge against Raúl Castro in May 2026 for his role in the downing of two planes belonging to Brothers to the Rescue in 1996, which revealed the existence of a "rapid response network" capable of mobilizing across the country just nine minutes after the announcement by Attorney General Todd Blanche.
The IAM case is also directly linked to the federal investigation into Ramírez Álvarez, captured on video coordinating legislative lobbying activities with U.S. nonprofit organizations, which investigators consider evidence of foreign influence over groups on American soil.
The overall framework of this pressure was documented in the State Department report on Cuba published on July 20, a 100-page document that describes the island as "the capital of 21st-century communism" and details nearly seven decades of espionage and subversion against the U.S.
When presenting that report, Secretary of State Marco Rubio was unequivocal: "For over six decades, the Cuban regime has been the primary sponsor of radical leftism and third-worldism in the United States. The American people deserve to know this."
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