Both Donald Trump and Kamala Harris have touted endorsements from members of the opposite party in the lead-up to the 2024 US presidential election. However, veteran Republican strategist Karl Rove has not appeared at an event to support either candidate, contrary to online claims that he was in the swing state of Pennsylvania to back the Democratic vice president -- and a video cited as proof predates her candidacy. "Karl Rove was rallying support for Kamala Harris yesterday in Pennsylvania...