Specifically, rising summertime temperatures in the hottest states will curb economic growth. And the states with the hottest summertime temperatures are all located in the South: Florida, Louisiana, Texas, Mississippi, Oklahoma, Alabama, Georgia, South Carolina, Arkansas, and Arizona. All of these states voted for Donald Trump in 2016.

This paper is consistent with a 2015 Nature study that found an optimal temperature range for economic activity. Economies thrive in regions with an average temperature of around 14°C (57°F). Developed countries like the US, Japan, and much of Europe happen to be near that ideal temperature, but continued global warming will shift their climates away from the sweet spot and slow economic growth. The question is, by how much?
Source: Global warming will depress economic growth in Trump country | Dana Nuccitelli