What Happened
The U.S. State Department released a big report on Monday. It's called “Cuba: The Capital of 21st Century Communism.” It runs 100 pages.
Secretary of State Marco Rubio announced it himself on X.
For more than six decades, the Cuban regime has been the leading sponsor of radical leftism and Third Worldism in the United States.
The State Department is exposing the full history of Cuban espionage and subversion in our country.
The American people deserve to know.…
— Secretary Marco Rubio (@SecRubio) July 20, 2026
The report traces this back to Fidel Castro himself. It quotes a 1958 letter where Castro wrote about a “much wider and bigger war” he planned to wage against America once his revolution succeeded.
From there, the report walks through decades of history.
The report says Cuba has spent almost seventy years working to undermine the United States. Not just with spies. Not just with propaganda. The report claims Havana blends espionage, activism, and political influence all together, in a way most other hostile countries don't.
“Other hostile regimes have stolen American secrets, financed terrorism, armed proxies, spread propaganda, or sought to cultivate political influence inside the United States,” the document says. Cuba, the report argues, does all of it at once.
The report says Cuba trained thousands of left-wing fighters over the decades. It says the island became a hideout for American fugitives on the run from bombings and robberies.
It even claims Cuban agents worked their way into the State Department, the National Security Council, and the Pentagon without getting caught for years.
The Modern Network
This is where the report gets specific.
The report names the Cuban Institute of Friendship with the Peoples, a group sanctioned by the State Department back in June. The report claims almost 90 percent of that group's staff has ties to Cuban intelligence services.
It also names the Venceremos Brigade, a program that has brought roughly 10,000 American activists to Cuba since 1969. A 1975 Senate report, cited again in this new document, once called it one of the most dangerous foreign infiltration operations ever aimed at the United States.
The report says American college campuses are a top target. It claims Cuba treats universities as recruiting grounds for young Americans who will later hold positions of real influence and power.
On the hard intelligence side, the report says Cuba currently hosts 18 known signal intelligence facilities. Two of those are reportedly run by Russia. The report ties this into a bigger picture — Cuba working alongside Russia, China, and Iran to project power against the United States from ninety miles off Florida's coast.
The report also names living people. It points to streamer Hasan Piker, Amazon union organizer Christian Smalls, and environmental activist Isra Hirsi — daughter of Representative Ilhan Omar — as connected to this network, along with the Democratic Socialists of America.
Since the 1960s, Cuba has served as the premier state sponsor of left-wing racial extremism in the United States. pic.twitter.com/AhVAoWZ3pm
— Department of State (@StateDept) July 20, 2026
Why This Matters To Conservatives
National defense is one of the few jobs the federal government is clearly supposed to do. Exposing a foreign government's decades-long effort to shape American politics fits squarely inside that job description.
This report also lands inside a bigger pressure campaign. President Trump put Cuba back on the state sponsor of terrorism list in 2025, after first doing it in 2021. Washington has added more than 240 sanctions since.
In January, the administration declared a national emergency over the island.
What Comes Next
State Department officials say the president is keeping every option open. That could mean more sanctions, tighter scrutiny of the named groups, or congressional hearings in the months ahead.
Readers who want the full picture should read the report directly rather than relying only on secondhand summaries.
Full report: Cuba-Report
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