This dissertation contributes to the literature on regime change and stability by studying Pakistan, a case where fragmentation of power among the ruling classes has endured since the country's inception, creating a kind of "persistent instability." The study from which I draw my conclusions investigates the role of the military and political parties in the processes of recruitment and selection of the political elite. I argue that the recruitment process is a window into regime dynamics because it determines who gains power, empowers the recruiters and defines the relationship between the rulers and the ruled by shaping the behaviour of political leadership. Recruitment and selection is a task common to all political parties regardless of regime type. Studying how political parties actually perform this task not only presents an excellent opportunity for comparative analysis but also gives us a lens through which to understand the internal life of party organization in hybrid regimes. The principal organizing questions of this research are: Who aspires to pursue public office and why? Who does the recruitment? And what criteria inform the selectors' decision? Furthermore, I will attempt to analyze the consequences of the recruitment process on the behavior of the political elite in public office, consequences that in turn determine the efficacy of the legislature and nature of the regime. I have limited the examination of recruitment and candidate selection methods to the main parliamentary parties of Pakistan--Pakistan People's Party (PPP), Pakistan Muslim League (PML), Muttahida Qaumi Movement (MQM), and Awami National Party (ANP).