Did the CIA once attempt to kill Fidel Castro with a poisonous cigar?

Yes, the CIA did attempt to assassinate Fidel Castro using various methods, including a plan to use a poisonous cigar. This scheme was part of a series of covert operations aimed at eliminating the Cuban leader during the Cold War. The cigar was meant to deliver a lethal toxin, but the plot ultimately failed, as did many other assassination attempts against Castro.