Vittorio Vidali - in Mexico and Italy

In Mexico and Italy

Back in Mexico, Vidali was definitely involved in the May 24, 1940 failed frontal assault on Trotsky's residence in Mexico City, along with Grigulevich and Mexican painter David Alfaro Siqueiros. Vidali is thought to have been involved with the insertion of assassin Ramón Mercader into Trotsky's inner circle - Mercader was to kill Trotsky later that year.

Vittorio Vidali returned to Trieste in 1947, when the Free Territory of Trieste was established. He soon became one of the most influential members of the Communist Party of the Free Territory of Trieste. In 1948, after the Tito-Stalin split, he became the leader of the party and carried out the de-Titoisation of Trieste's Communist organizations. He also got rid of the Yugoslav influence on the Communist Party of the Free Territory of Trieste, establishing strong links with the Italian Communists. During this period, he also clashed with the local Slovene minority that had been influential among Trieste's Communist before his arrival. After 1954, when Trieste became part of Italy again, Vidali served as a member of Italian Parliament.