Some factors that have contributed to this growing political divide include:

- Growing ideological differences: Over time, the Democratic and Republican parties have become more ideologically distinct, with Democrats generally advocating for more progressive policies and Republicans favouring more conservative approaches.

- Geographical sorting: People have become increasingly likely to live in areas where their neighbours share their political views, leading to the formation of "red" and "blue" states and communities.

- Media echo chambers: The proliferation of partisan media outlets has made it easier for people to consume news and information that aligns with their existing beliefs and biases.