Democracy is often a conquest of elite opposition parties. In electoral authoritarian regimes, opposition parties will promote suffrage expansion in order to weaken the ruling parties' control over elections and improve their own electoral possibilities. Ruling parties, by contrast, will oppose suffrage expansion for the same reasons that opposition parties support it, and they will use their control of the political system to block it. Suffrage reforms typically occur in electoral authoritarian regimes only when there is a split within the ruling coalition that leads a faction to side with the opposition. I explore these arguments through detailed qualitative analyses of suffrage reforms in Chile in 1874 and Uruguay in 1918, as well as a quantitative analysis of a roll-call vote in Chile.