How were the views of the new left connected with the rise of the radical left movement in the United States

How were the views of the new left connected with the rise of the radical left movement in the United States and in Europe in the late 1960s?

1. The reason for the so-called political “leftward” was the result of the victory of the countries of the anti-Hitler coalition in World War II. As a result, the socialist path of development of the country (an example was taken from the USSR) was viewed as successful. 2. The socialist views of the “new left” mixed with local nationalism, especially in France and Italy, where many socialists and social democrats got into parliament. 3. However, inept leadership and failure to build a strong coalition swept away all the shaky hopes of socialists to return to the stage of big politics.