The political pressure to grant Bosch a pardon was begun during the congressional campaign run by Ileana Ros-Lehtinen, herself a Cuban American, and overseen by her campaign manager Jeb Bush. The resultant pardon reputedly saw huge celebrations in Miami, in what was then called 'Free Orlando Day"
There is a wealth of information on this Bosch fellow through the years. Here is a brief background in an article from the The Guardian UK in 2002.
New book reveals links of two presidents and the governor of Florida with exiled hardliners.
Most controversially, at the request of Jeb, Mr Bush Sr intervened to release the convicted Cuban terrorist Orlando Bosch from prison and then granted him US residency. According to the justice department in George Bush Sr's administration, Bosch had participated in more than 30 terrorist acts. He was convicted of firing a rocket into a Polish ship which was on passage to Cuba. He was also implicated in the 1976 blowing-up of a Cubana plane flying to Havana from Venezuela in which all 73 civilians on board were killed.
CIA memorandums strongly suggest, according to Bardach's book, that Bosch was one of the conspirators, and quotes the then secretary of state, Henry Kissinger, as writing that the "US government had been planning to suggest Bosch's deportation before Cubana airlines crash took place for his suspected involvement in other terrorist acts and violation of his parole".
Bosch's release, often referred to in the US media as a pardon, was the result of pressure brought by hardline Cubans in Miami, with Jeb Bush serving as their point man. Bosch now lives in Miami and remains unrepentant about his militant activities, according to Bardach.
..."In July this year, Jeb Bush nominated Raoul Cantero, the grandson of Batista, as a Florida supreme court judge despite his lack of experience. Mr Cantero had previously represented Bosch and acted as his spokesman, once describing Bosch on Miami radio as a "great Cuban patriot".