Here is the seventh lecture, which discusses the Catiline Conspiracy and the rise and distintegration of the First Triumvirate of Caesar, Pompey and Crassus. There is a digression on Eastern politics and the Parthian Empire.
In this series, Sean Gabb will explain how the Roman Constitution was transformed, in just over a century, from an oligarchical republic with strong elements of democracy to a divine right military dictatorship.