For Eloy Gutierrez Menoyo, "opponent'' is something of a career description. As part of Fidel Castro's rebel army in the 1950s, he led 3,000 men against the Batista dictatorship. When the victorious Castro moved politically into the Soviet camp, Menoyo launched a quixotic raid against his former comrades. That landed him in a Cuban jail for 22 years. Released in 1987, he flew to Miami, where he was greeted by cheering crowds of fellow exiles.
Today Menoyo is back in the opposition, this time against the leadership of the Cuban-American community that cheered his arrival. In 1993 he formed Cambio Cubano,...