Discuss why in Aninmal Farm, after the overthrow of Jones, the Pigs start to undermine the revolution and turn it into a dictatorship.

I think that the actions of the Pigs when they enter the
roles of power represent Orwell's fundamental mistrust of government.  One of the
predominant themes of the novel is that political ambitions can lead individuals in the
position of power to abuse the public trust.  Citizens have to be vigilant and exercise
their voices of dissent at every possible avenue to guard against political actions that
go against the public good.  Through Napoleon's design and Squealer's words, the other
animals are misled into believing that what "Comrade Napoleon" does feeds into the
overall tenets of Animalism and the revolution.  This feeds Orwell's points that if
people do not get turned on to politics, politics will become turned on them.  In this
light, one sees how the Pigs undermine the revolution because of the desire of political
power and consolidating their own control through government.  The totalitarian vision
that results is a product of both the pigs' desire to maintain and keep control and the
animals' trusting nature or lack of dissent to ensure that their government works for
their benefit and not the benefit for those in the position of
power.