Today sees Americans in a number of states vote in the primaries for the Democratic and Republican presidential candidates. In this recent editorial for Socialist Appeal USA, John Peterson analyses the result of last week’s New York primary, in which Bernie Sanders lost to Hillary Clinton, and points the way forward for those seeking a fundamental change in US society.

On Sunday 17th April, the impeachment of Dilma Rousseff, the Brazilian President, was approved on Sunday by a united front of bourgeois parties in order to establish a new government to act in the interest of the capitalists. But the impeachment has unleashed the forces of class struggle in Brazil, and the new government will be unable to stabilise the situation.

In this fourth and final part, the International Marxist Tendency’s draft world perspectives document analyses the revolutionary tasks and tactics required in this turbulent period, concluding with an overview of the historical epoch that society is passing through – an epoch of crises and class struggles in all countries.