Billionaire Bill Ackman has warned voters to be wary of information shared online with the intent of “manipulating voters,” citing a recent video shared by Vice President Kamala Harris’s campaign.

The video, released by the Kamala HQ social media account, claimed that former President Donald Trump was “frozen on stage” as songs played for over 30 minutes during a town hall event that Trump attended when, in reality, Trump was listening to the music when the event was paused while two attendees received medical attention. Ackman wrote on X that a work colleague of his showed him the edited video from Kamala HQ and stated his friend had been “manipulated by propaganda” from the Harris campaign.