Sponsoring the ANC?

Yes, and also because Cuba helped a lot of leftists (from social-democrats to communists) in latin america, asia and africa.

Cuba was designated as a State Sponsor of Terrorism in 1982 because of its long history of providing advice, safe haven, communications, training, and financial support to guerrilla groups and individual terrorists. This designation was rescinded in 2015. Cuba maintains close and collaborative ties with designated state sponsors of terror such as Iran and North Korea.

The Cuban regime continues to host ELN leaders associated with now-defunct peace talks to reside in Cuba, despite Colombia’s repeated requests for their extradition. Cuba also continues to harbor multiple fugitives who committed or supported acts of terrorism in the United States. The U.S. Department of State certified Cuba as “not cooperating fully” with U.S. counterterrorism efforts for 2019, the first such certification of Cuba since 2015.

Citing peace negotiation protocols, Cuba refused Colombia’s request to extradite 10 ELN leaders living in Havana after that group claimed responsibility for the January 2019 bombing of a Bogota police academy that killed 22 people and injured 87 others. In addition to ELN terrorists, there was credible reporting that FARC dissidents who abandoned the peace process in Colombia traveled to Havana to seek the regime’s support.

On July 28 during the closing remarks of the Sao Paolo Forum in Caracas, Nicolas Maduro stated that Iván Márquez and Jesús Santrich – former FARC leaders who fled Colombia after abandoning the peace process and announced a return to terrorist activities – were both welcome in Venezuela. Cuba is a key supporter of Maduro’s narco-regime and is an active participant in maintaining Maduro’s authority.