 Complete the following phrase:  Within the Bolshevik Party, Bukharin was initially a left communist, but gradually moved to the right from 1921. His strong support for and defence of the New Economic Policy NEP eventually saw him lead the Right Opposition. By late 1924, this stance had positioned Bukharin favourably as Joseph Stalins chief ally, with Bukharin soon elaborating Stalins new theory and policy of Socialism in One Country. Together, Bukharin and Stalin ousted Trotsky, Grigory Zinoviev and Lev Kamenev from the party at the 