Danielle Allen is a politics professor at Harvard. In a recent article at The Washington Post she writes about the death threats she received after Charlie Kirk, a spokesperson for Liberty University’s Falkirk Center, made a false allegation about her teaching. The allegation occurred on the Tucker Carlson Show on Fox.

Here is Allen:

Let me share a 2017 email exchange between myself and Fox News host Tucker Carlson after he broadcast my face on his television show and permitted his guest, conservative activist Charlie Kirk, to falsely allege that, in my classroom at Harvard, I taught that the rise of Trump was similar to the rise of Hitler. Immediately following that broadcast, I received death threats called into my office phone. I wrote to both Fox News and Carlson requesting a correction. I received none. Here is the exchange that resulted:

Danielle Allen: You failed to vet your interviewee for factual accuracy or to take responsibility for the falsehoods articulated on your show.

Tucker Carlson: How would I have vetted that claim? You compared Trump’s election to the rise of Hitler in the Washington Post. It didn’t seem outlandish to suggest that you might teach similar things in class. And, in fact, I still have no evidence that you haven’t taught that in class. How can I verify that?