Bill Ackman has long been one of the Democratic Party’s most reliable donors. The billionaire hedge fund manager, who made his name with high-profile activist investments through his firm Pershing Square Capital Management, gave millions over the years to Democratic candidates and causes.

But in the months following the Hamas attack on Israel on October 7, 2023, Ackman began to publicly reassess those allegiances.

A graduate of both Harvard College and Harvard Business School, Ackman was among a group of prominent donors, but perhaps the most prominent and the most outspoken, who blasted the university’s initial response to the October 7 attack. In the weeks that followed, Ackman called for the release of the names of students who had signed a pro-Palestinian letter and questioned the un

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