There was a paper published in 2022 on the political leanings of scientists [1]. Here's the abstract:
> Scientists in the United States are more politically liberal than the general population. This fact has fed charges of political bias. To learn more about scientists’ political behavior, we analyze publicly available Federal Election Commission data. We find that scientists who donate to federal candidates and parties are far more likely to support Democrats than Republicans, with less than 10 percent of donations going to Republicans in recent years. The same pattern holds true for employees of the academic sector generally, and for scientists employed in the energy sector. This was not always the case: Before 2000, political contributions were more evenly divided between Democrats and Republicans. We argue that these observed changes are more readily explained by changes in Republican Party attitudes toward science than by changes in American scientists. We reason that greater public involvement by centrist and conservative scientists could help increase trust in science among Republicans.
An example they give of the changes in the Republican Party are the Republican position on climate change. For a good illustration at just how much Republicans have changed just take a look at the 2008 Republican Party Platform [2].
They wanted to address climate change by reducing emissions and greenhouse gases, increasing energy efficiency, promoting EVs and natural gas powered vehicles, and create multi-million dollar prizes for technological developments to eliminate the need for gas powered cars or abate atmospheric carbon.
They also talk about the need for renewables to become mainstream and supported long-term energy tax credits to promote that.
Compare to today. Now they are opposed to nearly all of that. The current administration's position is the climate change is a hoax or scam.
[1] https://www.nature.com/articles/s41599-022-01382-3
[2] https://www.presidency.ucsb.edu/documents/2008-republican-pa...