From 2017, some backround...
https://nymag.com/intelligencer/2017/06/what-really-happened-between-joe-biden-and-bill-ackman.html
One more, from last winter...
Thanks for the background. It it is funny about how supposedly really smart people maneuver themselves into dead end corners. Go never Trump and find out that the guys in your corner are “from the river to the sea [Lebensraum for Muslims anyone?]” nazis. My concern here is how the elite universities in the US have destroyed themeselves by suppressing actual intellectual debate and freedom of speech.