Journal article: Migration contributes to the circulation of goods, knowledge, and ideas. Using community and individual-level data from Moldova, we show that the emigration wave that started in the late 1990s strongly affected electoral outcomes and political preferences in Moldova during the following decade, eventually contributing to the fall of the last Communist government in Europe. Our results are suggestive of information transmission and cultural diffusion channels. Identification relies on the quasiexperimental context and on the differential effects arising from the fact that emigration was directed both to more democratic Western Europe and to less democratic Russia.