Astrophysicist, director of the Hayden Planetarium in New York, "Startalk" podcast host and occasional Twitter "intergalactic troll" Neil deGrasse Tyson on Aug. 31, 2021, penned a tweet he later deleted because he said it was "causing too many unintended Twitter fights."
The deleted tweet compared the rate of COVID-19 deaths among "(unvaccinated) Republican voters" to Democrats.
"Right now in the USA, every ten days, more than 8,000 (unvaccinated) Republican voters are dying of COVID-19. That’s 5X the rate for Democrats," the tweet read. The post also contained a drawing of a book titled, "How to Die Like a Medieval Peasant In Spite of Modern Medicine."
Here is an image of the now-deleted tweet, which was archived by the Internet Archive (the same post is still on Tyson's Facebook page):
Tyson either didn't provide a source for that information, or if he did, it was lost when he deleted the tweet. There was no source provided in the corresponding Facebook post.
The Brookings Institute, citing Kaiser Family Foundation polling data, has reported that anti-vaccine, anti-mask, and anti-social-distancing campaigns taken up by right-leaning political figures and media have had an effect on a segment of Republican voters, to the extent that Republicans are among the groups most likely to state they will "definitely" not get vaccinated.