Viral antisemitic posts about Charlie Kirk assassination amass 139m views on X
Antisemitic conspiracies about Kirk's killing reached ~140M views; no viral post carried a Community Note.
Executive summary
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CCDH researchers analyzed 19,524 posts on X mentioning Charlie Kirk alongside terms such as "Israel," "Jews," and "Mossad" in the days following his assassination in September 2025. An AI model (GPT-4o) scored posts for conspiratorial content, flagging several thousand candidates that were then manually reviewed by two researchers; posts with over 100,000 views were verified individually, yielding a final set of 126 posts from 75 accounts.
Those 126 posts, which advanced narratives blaming Israel, Mossad, or Jewish people broadly for Kirk's death, collectively amassed roughly 139 million views, averaging about 1.1 million views each, within a wider dataset of nearly 889 million views across all Kirk-related posts using the tracked keywords.
The central finding is that none of the 126 verified conspiratorial posts carried a Community Note, despite X's fact-checking system being positioned by platform leadership as a safeguard against harmful misinformation. The report treats this as evidence that the Community Notes mechanism failed to intervene on a fast-moving, high-reach conspiracy event.
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