What was the main reason that immigrants in cities became in cities became new voters in large numbers?

Immigrants in cities became new voters in large numbers primarily due to the political mobilization efforts of political parties and community organizations that sought to engage them in the democratic process. Many immigrants were attracted to the promise of political representation and the potential to influence policies that directly affected their lives, such as labor rights, housing, and social services. Additionally, as they settled in urban areas, they formed tight-knit communities that encouraged civic participation and voting as a means of asserting their rights and interests.