Do you have a source? Here are a few sources I found but they don't segment income level. 2018: https://www.pewresearch.org/politics/2018/03/20/1-trends-in-pa

Do you have a source? Here are a few sources I found but they don't segment income level. 2018: https://www.pewresearch.org/politics/2018/03/20/1-trends-in-party-affiliation-among-demographic-groups/ https://www.pewresearch.org/politics/2018/03/20/1-trends-in-... 2015: https://www.pewresearch.org/politics/2015/04/07/a-deep-dive-into-party-affiliation/ https://www.pewresearch.org/politics/2015/04/07/a-deep-dive-... https://dasil.sites.grinnell.edu/2020/05/the-demographic-profiles-of-democrats-and-republicans/ https://dasil.sites.grinnell.edu/2020/05/the-demographic-pro...